I want to create dynamic layout but getting null poniter exception when I add control into view by addview() method.how I solve this error?
this is my xml file
select_theator.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="100dp"
android:layout_height="100dp" >
<ImageView
android:id="#+id/iv1"
android:layout_width="115dp"
android:layout_height="128dp"
android:layout_alignParentLeft="true"
android:layout_below="#+id/textView1"
android:src="#drawable/ic_launcher" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="175dp"
android:layout_height="175dp"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="#+id/linearLayout2"
android:layout_marginTop="25dp"
android:background="#drawable/round">
<TextView
android:id="#+id/tvtheator"
android:layout_width="100dp"
android:layout_height="38dp"
android:layout_marginTop="10dp"
android:layout_weight="0.02"
android:text="Copperas Cove"
android:textColor="#000000" />
<ImageView
android:id="#+id/myimg"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="90dp"
android:layout_marginTop="15dp"
android:layout_weight="0.00"
android:layout_marginRight="20dp"
android:background="#drawable/arrow" />
</LinearLayout>
<Button
android:id="#+id/seat"
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_alignParentLeft="true"
android:layout_below="#+id/linearLayout1"
android:layout_marginTop="30dp"
android:background="#drawable/green"
android:text="SELECT SEATS" />
<Button
android:id="#+id/share"
android:layout_width="wrap_content"
android:layout_height="40dp"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="#+id/seat"
android:layout_marginTop="18dp"
android:background="#drawable/round"
android:text="Share" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/linearLayout2"
android:layout_alignParentRight="true"
android:layout_marginLeft="110dp" >
</RelativeLayout>
<LinearLayout
android:layout_width="200dp"
android:layout_height="100dp"
android:layout_above="#+id/linearLayout1"
android:layout_alignParentRight="true"
android:background="#drawable/gray" >
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/tvname"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:textColor="#000000"
android:text="22 JUMP STREET" />
<TextView
android:id="#+id/tvdate"
android:layout_width="50dp"
android:layout_height="34dp"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="#+id/tvname"
android:maxLines="1"
android:text="Thu,Jul 10th 11:05 AM"
android:textColor="#000000"/>
<Button
android:id="#+id/br"
style="?android:attr/buttonStyleSmall"
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_below="#+id/tvdate"
android:layout_centerHorizontal="true"
android:background="#drawable/round"
android:text="R" />
<Button
android:id="#+id/btime"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/tvdate"
android:background="#drawable/round"
android:text="1 hr 50 min." />
</RelativeLayout>
</LinearLayout>
</RelativeLayout>
this is my edited java file
Theator.java
public class Theator extends Activity{
Bitmap bitmap2;
ImageView iv,iv1;
TextView tv1,tv2,tv3;
Button bt1,bt2,bt3,bt4;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
ScrollView sv = new ScrollView(this);
LinearLayout ll = new LinearLayout(this);
ll.setOrientation(LinearLayout.VERTICAL);
sv.addView(ll);
setContentView(sv);
View view = LayoutInflater.from(this).inflate(R.layout.select_theator, ll, false);
iv = (ImageView)findViewById(R.id.iv1);
ll.addView(iv);
tv1=(TextView)findViewById(R.id.tvname);
ll.addView(tv1);
tv2=(TextView)findViewById(R.id.tvdate);
ll.addView(tv2);
bt1=(Button)findViewById(R.id.br);
ll.addView(bt1);
bt2=(Button)findViewById(R.id.btime);
ll.addView(bt2);
tv3=(TextView)findViewById(R.id.tvtheator);
ll.addView(tv3);
iv1=(ImageView)findViewById(R.id.myimg);
ll.addView(iv1);
bt3=(Button)findViewById(R.id.seat);
ll.addView(bt3);
bt4=(Button)findViewById(R.id.share);
ll.addView(bt4);
bitmap2 = getBitmapFromUrl("http://content7.flixster.com/movie/11/17/82/11178261_pro.jpg");
iv=(ImageView)findViewById(R.id.iv1);
iv.setImageBitmap(bitmap2);
}
private Bitmap getBitmapFromUrl(String src) {
// TODO Auto-generated method stub
try {
URL url =new URL(src);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input=connection.getInputStream();
Bitmap mybiBitmap=BitmapFactory.decodeStream(input);
return mybiBitmap;
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
return null;
}
}
}
You put the line
setContentView(sv);
after all view has been added.
iv = (ImageView)findViewById(R.id.iv1);
findViewById looks for that view in the current view hierarchy, which, in your case, consists only of the ScrollView and the LinearLayout. Use an inflater to retrieve an object of the view that contains the ids you are looking for
View view = LayoutInflater.from(this).inflate(R.layout.select_theator, ll, false);
and than use
iv = (ImageView)view.findViewById(R.id.iv1);
or you can use directly
View view = LayoutInflater.from(this).inflate(R.layout.select_theator, ll);
That will add the inflated view inside ll and, after you call setContentView, you can use findViewById, because now, that layout is part of the Activity view hierarchy
Related
This is my problem in all info window I have are too big, and I like to set up at 180dpheight and 300dp width, or warp_content instead:
I realized that the problem only occurs in version 2.2 and Android 2.3, on Android 4.1 dont have problems, and I do not try on version 3.x
Any idea how to fix it?
I read other post that said changed the getInfoContent for getInfoWindow, but I already have that way.
InfoWindow.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#243439"
android:orientation="horizontal" >
<ImageView
android:id="#+id/imagen"
android:layout_width="114dp"
android:layout_weight="0.5"
android:layout_height="174dp"
android:contentDescription="#string/app_name"/>
<LinearLayout
android:layout_width="174dp"
android:layout_height="174dp"
android:orientation="vertical" >
<TextView
android:id="#+id/titulo"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:textColor="#FFFFFF"
android:gravity="center_horizontal|center"
android:textSize="17sp"
android:textStyle="bold" />
<TextView
android:id="#+id/direccion"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="14dp"
android:textColor="#FFFFFF"
android:gravity="center_horizontal|center"
android:textSize="12sp" />
<TextView
android:id="#+id/vermas"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:textColor="#FFFFFF"
android:gravity="bottom|center_horizontal"
android:text="#string/vermas"
android:textSize="12sp" />
</LinearLayout>
</LinearLayout>
The fragment.java:
googlemap.setInfoWindowAdapter(new InfoWindowAdapter() {
#Override
public View getInfoWindow(Marker marker) {
View v = getLayoutInflater(null).inflate(R.layout.infowindow, null);
TextView titulo = (TextView) v.findViewById(R.id.titulo);
TextView direccion = (TextView) v.findViewById(R.id.direccion);
ImageView imagen = ((ImageView)v.findViewById(R.id.imagen));
titulo.setText(marker.getTitle());
direccion.setText(marker.getSnippet());
if(hash.get(marker) != null)
imagen.setImageDrawable(getResources().getDrawable(hash.get(marker)));
return v;
}
//..
#Override
public View getInfoContents(Marker marker) {
// TODO Auto-generated method stub
return null;
}
});
}
try below coxmk
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#243439"
android:orientation="horizontal" >
<ImageView
android:id="#+id/imagen"
android:layout_width="0dp"
android:layout_height="100dp"
android:layout_weight="0.5"
android:contentDescription="#string/app_name" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/titulo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:gravity="center_horizontal|center"
android:textColor="#FFFFFF"
android:textSize="17sp"
android:textStyle="bold" />
<TextView
android:id="#+id/direccion"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="14dp"
android:gravity="center_horizontal|center"
android:textColor="#FFFFFF"
android:textSize="12sp" />
<TextView
android:id="#+id/vermas"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="bottom|center_horizontal"
android:text="test"
android:textColor="#FFFFFF"
android:textSize="12sp" />
</LinearLayout>
</LinearLayout>
I have an activity with three fragments placed in a ViewPager. On the first two fragments I have a list that drops down, kind of like an animated ExpandableListView but it is a simple RelativeLayout containing a TextView and ImageView, when pressed slides down a LinearLayout containing some elements. On clicking the RelativeLayout the followig actions are taken:
change the background color of the clicked RelativeLayout (works every time for every layout in every fragment)
change the color of the text in TextView (works every time for the first element I'll explain below)
animate the image, an arrow to change color and rotate (also works but for the first element)
The problem is as follows:
the first fragment contains only one list (a RelativeLayout that shows or hides a LinearLayout) and it works fine the background, text color and image change and the image rotates and the Linearlayout slides up and down correspondingly. The second fragment contains 4 such groupings (RelativeLayout controlling LinearLayout) and on the first time this fragment is shown only the first grouping seems to work. The other three change background and slide the Linearlayout but as far as i can tell it keeps the same color and the same image (there are two colors a white and an orange that change and since the background changes from orange to white i assume the text stays white instead of changing to orange, same goes for the image).
The punchline:
when I leave it for a few seconds and click it again it works fine, everything changes accordingly, and if i for instance flip to the third fragment and back to the second it works. On the other hand if I start the app, got to the second fragment, back to the first, and to the second again it doesn't work.
I don't know if this has something to do with the GC and recycling views or something else.
XML:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/nutritionList"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<RelativeLayout
android:id="#+id/aboutWetFood"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="1dp"
android:clickable="false"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/wetSub"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="60dp"
android:orientation="vertical"
android:visibility="gone" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_marginBottom="1dp"
android:background="#EDEDED" >
<TextView
android:id="#+id/TextView04"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="30dp"
android:text="SUB MENU 1"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/my_yellow" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_marginBottom="1dp"
android:background="#EDEDED" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="30dp"
android:text="SUB MENU 1"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/my_yellow" />
</RelativeLayout>
</LinearLayout>
<RelativeLayout
android:id="#+id/wetLayout"
android:layout_width="match_parent"
android:layout_height="60dp"
android:background="#color/my_yellow"
android:clickable="true"
android:onClick="openNutrition"
android:tag="wet" >
<TextView
android:id="#+id/wetTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="30dp"
android:text="#string/wet_food"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/white" />
<ImageView
android:id="#+id/wetArrow"
android:layout_width="12dp"
android:layout_height="20dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="30dp"
android:src="#drawable/arrow_right_white" />
</RelativeLayout>
</RelativeLayout>
<RelativeLayout
android:id="#+id/aboutDryFood"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="1dp"
android:clickable="false"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/drySub"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="60dp"
android:orientation="vertical"
android:visibility="gone" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_marginBottom="1dp"
android:background="#EDEDED" >
<TextView
android:id="#+id/TextView06"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="30dp"
android:text="SUB MENU 1"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/my_yellow" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_marginBottom="1dp"
android:background="#EDEDED" >
<TextView
android:id="#+id/TextView05"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="30dp"
android:text="SUB MENU 1"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/my_yellow" />
</RelativeLayout>
</LinearLayout>
<RelativeLayout
android:id="#+id/dryLayout"
android:layout_width="match_parent"
android:layout_height="60dp"
android:background="#color/my_yellow"
android:clickable="true"
android:onClick="openNutrition"
android:tag="dry" >
<TextView
android:id="#+id/dryTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="30dp"
android:text="#string/dry_food"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/white" />
<ImageView
android:id="#+id/dryArrow"
android:layout_width="12dp"
android:layout_height="20dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="30dp"
android:src="#drawable/arrow_right_white" />
</RelativeLayout>
</RelativeLayout>
<RelativeLayout
android:id="#+id/whyMixedFeeding"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="1dp"
android:clickable="false"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/mixedSub"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="60dp"
android:orientation="vertical"
android:visibility="gone" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_marginBottom="1dp"
android:background="#EDEDED" >
<TextView
android:id="#+id/TextView08"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="30dp"
android:text="SUB MENU 1"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/my_yellow" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_marginBottom="1dp"
android:background="#EDEDED" >
<TextView
android:id="#+id/TextView07"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="30dp"
android:text="SUB MENU 1"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/my_yellow" />
</RelativeLayout>
</LinearLayout>
<RelativeLayout
android:id="#+id/mixedLayout"
android:layout_width="match_parent"
android:layout_height="60dp"
android:background="#color/my_yellow"
android:clickable="true"
android:onClick="openNutrition"
android:tag="mixed" >
<TextView
android:id="#+id/mixedTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="30dp"
android:text="#string/mixed_feeding"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/white" />
<ImageView
android:id="#+id/mixedArrow"
android:layout_width="12dp"
android:layout_height="20dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="30dp"
android:src="#drawable/arrow_right_white" />
</RelativeLayout>
</RelativeLayout>
<RelativeLayout
android:id="#+id/nutritionOralCare"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="1dp"
android:clickable="false"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/oralSub"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="60dp"
android:orientation="vertical"
android:visibility="gone" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_marginBottom="1dp"
android:background="#EDEDED" >
<TextView
android:id="#+id/TextView09"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="30dp"
android:text="SUB MENU 1"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/my_yellow" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_marginBottom="1dp"
android:background="#EDEDED" >
<TextView
android:id="#+id/TextView10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="30dp"
android:text="SUB MENU 1"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/my_yellow" />
</RelativeLayout>
</LinearLayout>
<RelativeLayout
android:id="#+id/oralLayout"
android:layout_width="match_parent"
android:layout_height="60dp"
android:background="#color/my_yellow"
android:clickable="true"
android:onClick="openNutrition"
android:tag="oral" >
<TextView
android:id="#+id/oralTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:layout_marginLeft="30dp"
android:text="#string/oral_care_caps"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#color/white" />
<ImageView
android:id="#+id/oralArrow"
android:layout_width="12dp"
android:layout_height="20dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="30dp"
android:src="#drawable/arrow_right_white" />
</RelativeLayout>
</RelativeLayout>
</LinearLayout>
</ScrollView>
Methods for changing and animating the views:
public void openNutrition(View view) {
String viewTag = view.getTag().toString();
if (viewTag.equals("wet")) {
nutrition = (RelativeLayout) findViewById(R.id.wetLayout);
nutritionSub = (LinearLayout) findViewById(R.id.wetSub);
nutritionTitle = (TextView) findViewById(R.id.wetTitle);
nutritionArrow = (ImageView) findViewById(R.id.wetArrow);
animate();
}
else if (viewTag.equals("dry")) {
nutrition = (RelativeLayout) findViewById(R.id.dryLayout);
nutritionSub = (LinearLayout) findViewById(R.id.drySub);
nutritionTitle = (TextView) findViewById(R.id.dryTitle);
nutritionArrow = (ImageView) findViewById(R.id.dryArrow);
animate();
}
else if (viewTag.equals("mixed")) {
nutrition = (RelativeLayout) findViewById(R.id.mixedLayout);
nutritionSub = (LinearLayout) findViewById(R.id.mixedSub);
nutritionTitle = (TextView) findViewById(R.id.mixedTitle);
nutritionArrow = (ImageView) findViewById(R.id.mixedArrow);
animate();
}
else if (viewTag.equals("oral")) {
nutrition = (RelativeLayout) findViewById(R.id.oralLayout);
nutritionSub = (LinearLayout) findViewById(R.id.oralSub);
nutritionTitle = (TextView) findViewById(R.id.oralTitle);
nutritionArrow = (ImageView) findViewById(R.id.oralArrow);
animate();
}
else if (viewTag.equals("changeMix")) {
nutrition = (RelativeLayout) findViewById(R.id.changeMixLayout);
nutritionSub = (LinearLayout) findViewById(R.id.foodTypeLayout);
nutritionTitle = (TextView) findViewById(R.id.changeMixText);
nutritionArrow = (ImageView) findViewById(R.id.changeMixArrow);
animate();
}
}
private void animate() {
if (nutritionSub.getVisibility() == View.GONE) {
nutritionSub.setVisibility(View.VISIBLE);
nutrition.setBackgroundColor(getResources().getColor(R.color.white));
nutritionTitle.setTextColor(getResources().getColor(
R.color.my_yellow));
nutritionArrow.setImageDrawable(getResources().getDrawable(
R.drawable.arrow_right_orange));
r = new RotateAnimation(currentPos, degrees,
Animation.RELATIVE_TO_SELF, 0.5f,
Animation.RELATIVE_TO_SELF, 0.5f);
/* Setting arrow animation properties */
setArrowAnimation();
Animation slideDown = AnimationUtils.loadAnimation(
getApplicationContext(), R.anim.slide_down);
nutritionArrow.startAnimation(r);
nutritionSub.startAnimation(slideDown);
} else {
nutrition.setBackgroundColor(getResources().getColor(
R.color.my_yellow));
nutritionTitle.setTextColor(getResources().getColor(R.color.white));
nutritionArrow.setImageDrawable(getResources().getDrawable(
R.drawable.arrow_right_white));
r = new RotateAnimation(degrees, currentPos,
Animation.RELATIVE_TO_SELF, 0.5f,
Animation.RELATIVE_TO_SELF, 0.5f);
/* Setting arrow animation properties */
setArrowAnimation();
Animation slideUp = AnimationUtils.loadAnimation(
getApplicationContext(), R.anim.slide_up);
slideUp.setAnimationListener(new AnimationListener() {
#Override
public void onAnimationStart(Animation animation) {
}
#Override
public void onAnimationEnd(Animation animation) {
nutritionSub.setVisibility(View.GONE);
}
#Override
public void onAnimationRepeat(Animation animation) {
}
});
nutritionArrow.startAnimation(r);
nutritionSub.startAnimation(slideUp);
}
}
private void setArrowAnimation() {
r.setInterpolator(new LinearInterpolator());
r.setDuration(500);
r.setFillEnabled(true);
r.setFillAfter(true);
}
nutrition,nutritionSub,nutritionTitle,nutritionArrow are declared as global private variables
Update
Running a log on my fragment class that extends Fragment and on OnPageChangeListener's method onPageSelected() shows that tags are set properly and visible. The issue seems to be related to the lifecycle of fragments since the changes to the text and image only occur when I flip through ALL three fragments and then return to the second.
Setting the pager:
List<Fragment> fragments = getFragments();
pageAdapter = new NutritionPageAdapter(getSupportFragmentManager(),
fragments);
ViewPager pager = (ViewPager) findViewById(R.id.viewpager);
pager.setAdapter(pageAdapter);
getFragments()
private List<Fragment> getFragments() {
List<Fragment> fList = new ArrayList<Fragment>();
fList.add(NutritionFragment.newInstance("Menu"));
fList.add(NutritionFragment.newInstance("Nutrition"));
fList.add(NutritionFragment.newInstance("Transition"));
return fList;
}
My Fragment class
public static final String FRAGMENT_TITLE = "FRAGMENT_TITLE";
private View v;
public static final NutritionFragment newInstance(String string) {
NutritionFragment f = new NutritionFragment();
Bundle b = new Bundle(1);
b.putString(FRAGMENT_TITLE, string);
f.setArguments(b);
return f;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
String screen = getArguments().getString(FRAGMENT_TITLE);
if (screen.equals("Menu")) {
v = inflater.inflate(R.layout.nutrition_menu_activity_layout,
container, false);
} else if (screen.equals("Transition")) {
v = inflater.inflate(R.layout.nutrition_transition_activity_layout,
container, false);
} else {
v = inflater.inflate(R.layout.nutrition_nutrition_activity_layout,
container, false);
}
return v;
}
I am developing an app in that I want to take a screen shot of current screen but with out title bar. I know the code to Capture a ScreenShot, but unable to customize it.
Code:
munchscreen.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
View v1 = L1.getRootView();
v1.setDrawingCacheEnabled(true);
Bitmap bm = v1.getDrawingCache();
BitmapDrawable bitmapDrawable = new BitmapDrawable(bm);
image = (ImageView) findViewById(R.id.screenshots);
image.setBackgroundDrawable(bitmapDrawable);
}
});
When I click on Clip then it should capture a screen shot of the screen shown below but should not include the part which I have circled..
XML:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#D8D5AA"
>
<LinearLayout
android:id="#+id/clip_from_web_linearlayout1"
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="#drawable/header"
android:orientation="horizontal"
>
<TextView
android:id="#+id/clip_from_web_textview_back"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Back"
android:layout_gravity="center"
android:layout_marginLeft="5dp"
android:textColor="#FFFFFF"
android:textSize="18sp"
/>
<TextView
android:id="#+id/clip_from_web_textview_header_title"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Clip From Web"
android:layout_gravity="center"
android:layout_marginLeft="60dp"
android:textColor="#FFFFFF"
android:textSize="18sp"
/>
<TextView
android:id="#+id/clip_from_web_textview_clip"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Clip"
android:layout_gravity="center"
android:layout_marginLeft="60dp"
android:textColor="#FFFFFF"
android:textSize="18sp"
/>
</LinearLayout>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/munch"
android:id="#+id/munchscreen"
android:layout_below="#+id/clip_from_web_linearlayout1"
/>
<ImageView
android:layout_width="200dp"
android:layout_height="200dp"
android:id="#+id/screenshots"
android:layout_below="#+id/munchscreen"
android:contentDescription="#string/app_name"
android:layout_centerInParent="true"
/>
<RelativeLayout
android:id="#+id/clip_from_web_bottom_bar"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_alignParentBottom="true"
android:background="#drawable/header" >
<Button
android:id="#+id/clip_from_web_previous"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginLeft="4dp"
android:background="#android:drawable/ic_media_previous"
android:layout_marginTop="2dp"
/>
<Button
android:id="#+id/clip_from_web_reload"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:background="#android:drawable/ic_menu_rotate"
android:layout_marginTop="5dp"
/>
<Button
android:id="#+id/clip_from_web_next"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_toRightOf="#+id/clip_from_web_reload"
android:layout_marginLeft="102dp"
android:background="#android:drawable/ic_media_next"
android:layout_marginTop="2dp"
/>
</RelativeLayout>
Image before Capturing screen shot..
Image after Capturing screen shot..
Take this to another Linear Layout
<LinearLayout
android:id="#+id/linear"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/munch"
android:id="#+id/munchscreen"
/>
<ImageView
android:layout_width="200dp"
android:layout_height="200dp"
android:id="#+id/screenshots"
android:contentDescription="#string/app_name"
/>
</LinearLayout>
Now find Id for this Linear Layout on oncreate() method making it global variable
LinearLayout ll;
ll = (LinearLayout)findViewById(R.id.linear);
now capture this screen
ll.setDrawingCacheEnabled(true);
ll.buildDrawingCache(true);
Bitmap cs = Bitmap.createBitmap(ll.getDrawingCache());
ll.setDrawingCacheEnabled(false);
Now set this bitmap to your ImageView.
try this...
munchscreen.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
View contentView = getWindow().getDecorView().findViewById(android.R.id.content);
contentView.setDrawingCacheEnabled(true);
contentView.buildDrawingCache();
Bitmap drawingCache = contentView.getDrawingCache();
BitmapDrawable bitmapDrawable = new BitmapDrawable(getResources(), drawingCache);
image = (ImageView) findViewById(R.id.screenshots);
image.setBackgroundDrawable(bitmapDrawable);
}
});
Hey friends I got the solution of above problem.
Follow below steps:-
activity_main.xml
<RelativeLayout
android:id="#+id/toolbar_rl"
android:layout_width="match_parent"
android:layout_height="?android:actionBarSize"
android:background="#color/header_color"
android:visibility="visible">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:weightSum="0"
tools:ignore="UselessParent">
<ImageView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:contentDescription="#string/app_name"
android:padding="#dimen/_8sdp"
android:src="#drawable/ic_back_24" />
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginEnd="#dimen/_10sdp"
android:layout_marginStart="#dimen/_20sdp"
android:layout_weight="1"
android:gravity="center"
android:text="#string/one_time"
android:textColor="#color/white"
android:textSize="#dimen/_13sdp"
tools:ignore="RtlHardcoded" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:contentDescription="#string/app_name"
android:padding="#dimen/_8sdp"
android:src="#drawable/ic_menu_icon" />
</LinearLayout>
</RelativeLayout>
<ScrollView
android:id="#+id/tabScroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:stretchColumns="1">
<ImageView
android:layout_width="fill_parent"
android:layout_height="210dp"
android:adjustViewBounds="true"
android:background="#drawable/otp_background"
android:contentDescription="#string/app_name"
android:scaleType="fitXY">
</ImageView>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/_16sdp"
android:background="#fff"
android:gravity="center"
android:text="Enter Unique Identification Number"
android:textColor="#color/header_color"
android:textSize="#dimen/_16sdp" />
<LinearLayout
android:id="#+id/layout_otp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="#dimen/_26sdp"
android:gravity="top|center"
android:orientation="horizontal">
<EditText
android:id="#+id/editTextone"
android:layout_width="#dimen/_40sdp"
android:layout_height="#dimen/_42sdp"
android:inputType="number"
android:maxLength="1"
android:nextFocusRight="#+id/editText_two"
tools:ignore="LabelFor">
<requestFocus />
</EditText>
<EditText
android:id="#+id/editTexttwo"
android:layout_width="#dimen/_40sdp"
android:layout_height="#dimen/_42sdp"
android:inputType="numberDecimal"
android:maxLength="1"
tools:ignore="LabelFor" />
<EditText
android:id="#+id/editTextthree"
android:layout_width="#dimen/_40sdp"
android:layout_height="#dimen/_42sdp"
android:inputType="numberDecimal"
android:maxLength="1"
tools:ignore="LabelFor" />
<EditText
android:id="#+id/editTextfour"
android:layout_width="#dimen/_40sdp"
android:layout_height="#dimen/_42sdp"
android:inputType="numberDecimal"
android:maxLength="1"
tools:ignore="LabelFor" />
<EditText
android:id="#+id/editTextfive"
android:layout_width="#dimen/_40sdp"
android:layout_height="#dimen/_42sdp"
android:inputType="numberDecimal"
android:maxLength="1"
tools:ignore="LabelFor" />
</LinearLayout>
<Button
android:id="#+id/btn_submit"
android:layout_width="#dimen/_220sdp"
android:layout_height="#dimen/_40sdp"
android:layout_gravity="center"
android:layout_marginBottom="#dimen/_46sdp"
android:layout_marginLeft="#dimen/_16sdp"
android:layout_marginRight="#dimen/_16sdp"
android:layout_marginTop="#dimen/_26sdp"
android:background="#drawable/editbox_one"
android:text="#string/capture"
android:textAllCaps="false"
android:textColor="#fff"
android:textSize="#dimen/_16sdp"
android:typeface="serif" />
</TableLayout>
</ScrollView>
This xml looks like.
in MainActivity Add some code.
3.1 Declare the Button.
Button button_submit;
3.2 Initialize the button.
button_submit = (Button) findViewById(R.id.btn_submit);
3.3 Set set OnClickListener to this button and Call one method i.e
takeScreenshot();
Note:- When you click on this button that time automatically capture the screen without title bar and it will store in file explore with current date, time and.jpg extension(Ex. Fri May 11 151938 GMT+0530 2018.jpg) and this captured image as a bitmap if you want you can set this bitmap to ImageView .
The Code of takeScreenshot().
private void takeScreenshot() {
Date now = new Date();
android.text.format.DateFormat.format("yyyy-MM-dd_hh:mm:ss", now);
try {
String mPath = Environment.getExternalStorageDirectory().toString() + "/" + now + ".jpg";
View u = findViewById(R.id.tabScroll);
u.setDrawingCacheEnabled(true);
ScrollView z = (ScrollView) findViewById(R.id.tabScroll);
z.setBackgroundColor(getResources().getColor(R.color.white));
int totalHeight = z.getChildAt(0).getHeight();
int totalWidth = z.getChildAt(0).getWidth();
u.layout(0, 0, totalWidth, totalHeight);
u.buildDrawingCache(true);
Bitmap bitmap = Bitmap.createBitmap(u.getDrawingCache());
u.setDrawingCacheEnabled(false);
File imageFile = new File(mPath);
FileOutputStream outputStream = new FileOutputStream(imageFile);
int quality = 100;
bitmap.compress(Bitmap.CompressFormat.JPEG, quality, outputStream);
outputStream.flush();
outputStream.close();
} catch (Throwable e) {
e.printStackTrace();
}
}
The output be looks like..
I hope it will helpful for you.
I have an xml which contain imageview and textview.Textview is placed toRightOf ImageView , but when i try to inflate the xml imageView and textview is getting overlapped.Any help is appreciated
data.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/img"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:paddingBottom="5dp"
android:src="#drawable/payback" />
<TextView
android:id="#+id/txt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_toRightOf="#+id/img"
android:paddingTop="5dp"
android:text="33%" />
<TextView
android:id="#+id/header"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/img"
android:paddingBottom="10dp"
android:text="Important and Urgent" />
</RelativeLayout>
Activity Code
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.check);
content=(LinearLayout)findViewById(R.id.content);
today=(TextView)findViewById(R.id.today);
tomorrow=(TextView)findViewById(R.id.tomorrow);
today.setOnClickListener(new TextView.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
//Toast.makeText(ToDo.this, "Before"+content.getChildCount(), Toast.LENGTH_LONG).show();
content.removeAllViews();
inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
int id=0;
for (int idx = 0; idx < 4; idx++) {
id = idx + 1;
rel = (RelativeLayout) inflater.inflate(R.layout.data, null);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
params.setMargins(0, 50, 0, 0);
txt = (TextView) rel.findViewById(R.id.txt);
txt.setText("AAA"+idx);
img = (ImageView) rel.findViewById(R.id.img);
img.setImageResource(R.drawable.payback);
img.setId(id);
content.addView(rel, params);
}
content.setVisibility(View.VISIBLE);
}
});
}
check.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<RelativeLayout
android:id="#+id/whiteboard"
android:layout_width="250dp"
android:layout_height="300dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="60dp"
android:background="#FFFFFF" >
<Button
android:id="#+id/add"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_marginBottom="17dp"
android:layout_marginLeft="20dp"
android:text="Add" />
<View
android:id="#+id/bottomseperator"
android:layout_width="200dp"
android:layout_height="1dp"
android:layout_above="#+id/add"
android:layout_alignLeft="#+id/add"
android:layout_marginBottom="10dp"
android:background="#000000" />
<View
android:id="#+id/topseperator"
android:layout_width="220dp"
android:layout_height="1dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="35dp"
android:background="#000000" />
<TextView
android:id="#+id/day"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="20dp"
android:layout_marginTop="8dp"
android:text="Day :"
android:textSize="15sp" />
<TextView
android:id="#+id/today"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/day"
android:layout_alignBottom="#+id/day"
android:layout_toRightOf="#+id/day"
android:text="Today /"
android:textSize="15sp" />
<TextView
android:id="#+id/tomorrow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/today"
android:layout_alignBottom="#+id/today"
android:layout_toRightOf="#+id/today"
android:text="Tomorrow /"
android:textSize="15sp" />
<TextView
android:id="#+id/custom"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/tomorrow"
android:layout_alignBottom="#+id/tomorrow"
android:layout_toRightOf="#+id/tomorrow"
android:text="Custom"
android:textSize="15sp" />
<ScrollView
android:id="#+id/contenntscroll"
android:layout_width="200dip"
android:layout_height="200dip"
android:layout_alignBottom="#+id/whiteboard"
android:layout_alignTop="#+id/whiteboard"
android:layout_below="#+id/topseperator"
android:layout_marginLeft="20dp"
android:layout_marginTop="10dp"
android:isScrollContainer="false"
android:scrollbars="none" >
<LinearLayout
android:id="#+id/content"
android:layout_width="200dp"
android:layout_height="300dp"
android:layout_marginTop="30dp"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
</RelativeLayout>
</RelativeLayout>
The statement:
img.setId(id);
is causing the problem remove this statement the code would work.
I'm trying to make a simple app to show pictures. The images get scaled to fit the screen then there is a next and prev button below the image. I would like the next and prev buttons to be at the button, but they keep getting drawn at the button of the image. Thus they move up and down, depending how big the picture is, each time you display a new image.
I found the following solution here, but it is not working for me:
android:gravity="bottom"
android:layout_alignParentBottom="true"
This is the xml file:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/backFeetGallery"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ImageView
android:id="#+id/viewimage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:src="#drawable/background" />
<LinearLayout
android:id="#+id/linearLayout4"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:gravity="bottom"
android:orientation="horizontal" >
<Button
android:id="#+id/butLeft"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="12px"
android:text=" Left "
android:textColor="#ff0000ff" />
<Button
android:id="#+id/butFavrest"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="12px"
android:text=" Favrets "
android:textColor="#ff0000ff" />
<Button
android:id="#+id/butEmail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="12px"
android:text=" email "
android:textColor="#ff0000ff" />
<Button
android:id="#+id/butRight"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="12px"
android:text=" Right "
android:textColor="#ff0000ff" />
</LinearLayout>
</LinearLayout>
source code
public class cFeetView extends cBaseView implements OnClickListener {
cFileNames mFileNames;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.feet);
// add listeners
View mLeft = findViewById(R.id.butRight);
mLeft.setOnClickListener(this);
// add listeners
View mRight = findViewById(R.id.butLeft);
mRight.setOnClickListener(this);
mFileNames=new cFileNames();
mFileNames.Start();
DrawFeet();
}
public void DrawFeet()
{
int screenHeight;
ImageView picImage = (ImageView) findViewById(R.id.viewimage);// R.id.viewpic);
try {
String FileName = "canon20.png";
FileName=mFileNames.Current();
AssetManager assetManager = getAssets();
InputStream inputStream;
inputStream = assetManager.open(FileName);
Bitmap icon = BitmapFactory.decodeStream(inputStream);
int screenWidth = getWindowManager().getDefaultDisplay().getWidth();
screenHeight = getWindowManager().getDefaultDisplay().getHeight();
int bw = icon.getWidth();
int bh=icon.getHeight();
float t = (float) screenWidth / (float) bw;
int iConHeight=(int)((float)bh*t);
picImage.setImageBitmap(icon);
// scale it
picImage.getLayoutParams().width = screenWidth;
picImage.getLayoutParams().height =iConHeight;
Bitmap scaledIcon = Bitmap.createScaledBitmap(icon, screenWidth, iConHeight, false);
} catch (IOException e) {
}
}
// set the top and buttom margins
public void onClick(View v)
{
Intent i;
switch(v.getId())
{
case R.id.butLeft:
mFileNames.Pre();
DrawFeet();
break;
case R.id.butRight:
mFileNames.Next();
DrawFeet();
break;
}
}
} // end class
Instead of LinearLayout, use RelativeLayout in your xml file.
LinearLayout is used only to arrange them in horizontal or vertical directions.
In order to use alignParentBottom you need to use RelativeLayout. And you dont need the gravity attribute.
My suggestion for your particular scenario is that you you have a RelativeLayout and put all your buttons inside a LinearLayout that is aligned at bottom and the ImageView above it.
Psedo:
<RelativeLayout>
<ImageView />
<LinearLayout
android:layout_below="#ImageView_id"
android:layout_alignParentBottom=true>
</LinearLayout>
</RelativeLayout>
Edited with your xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/backFeetGallery"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/viewimage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:src="#drawable/background" />
<LinearLayout
android:id="#+id/linearLayout4"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_below="#id/viewimage"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:orientation="horizontal" >
<Button
android:id="#+id/butLeft"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="12px"
android:text=" Left "
android:textColor="#ff0000ff" />
<Button
android:id="#+id/butFavrest"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="12px"
android:text=" Favrets "
android:textColor="#ff0000ff" />
<Button
android:id="#+id/butEmail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="12px"
android:text=" email "
android:textColor="#ff0000ff" />
<Button
android:id="#+id/butRight"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="12px"
android:text=" Right "
android:textColor="#ff0000ff" />
</LinearLayout>
</RelativeLayout>
You need to have everything in RelativeLayout. For example, look at this sample code which I made for one button which is aligned to bottom center of screen.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:text="Button" />
And here is the complete layout file for your layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="Button" />
<Button
android:id="#+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:text="Button" />
<Button
android:id="#+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="Button" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_toRightOf="#+id/button2"
android:text="Button" />
<Button
android:id="#+id/button5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_toLeftOf="#+id/button3"
android:text="Button" />
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="38dp"
android:src="#android:drawable/gallery_thumb" />
This is how it looks,