In my app. there is activity contain multiple linear layout and divider which created programmatically , its run fine ,
but i have to duplicate the linear layout and divider 5 times ,and all are the same except two things :
1- each linear layout has different string .
2- first divider margin differ than others divider margin .
is there's better approach to do that with more clean and shorter code .
any help will be much appreciated .
public class Dreams extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Boolean customTitleSupported =
requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
setContentView(R.layout.trip);
if (customTitleSupported) {
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,R.layout.custom_title);
}
TextView tv = (TextView) findViewById(R.id.title);
tv.setTypeface(FontFactory.getOldEnglish(getBaseContext()));
tv.setText("Dreams");
LinearLayout ll = (LinearLayout)findViewById(R.id.linearLayout);
// add text view
TextView tv1 = new TextView(this);
tv1.setGravity(Gravity.RIGHT);
tv1.setTextSize(30);
tv1.setTypeface(FontFactory.getOldEnglish(getBaseContext()));
ll.addView(tv1);
tv1.setText(Html.fromHtml(getString(R.string.dreams)));
ImageView divider1 = new ImageView(this);
LinearLayout.LayoutParams lp1 =
new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5);
lp1.setMargins(40, 0, 40, 0);
divider1.setLayoutParams(lp1);
divider1.setBackgroundColor(Color.RED);
ll.addView(divider1);
TextView tv2 = new TextView(this);
tv2.setGravity(Gravity.RIGHT);
tv2.setTextSize(30);
tv2.setTypeface(FontFactory.getOldEnglish(getBaseContext()));
ll.addView(tv2);
tv2.setText(Html.fromHtml(getString(R.string.dream_1)));
ImageView divider2 = new ImageView(this);
LinearLayout.LayoutParams lp2 =
new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5);
lp2.setMargins(10, 10, 10, 10);
divider2.setLayoutParams(lp2);
divider2.setBackgroundColor(Color.RED);
ll.addView(divider2);
TextView tv3 = new TextView(this);
tv3.setGravity(Gravity.RIGHT);
tv3.setTextSize(30);
tv3.setTypeface(FontFactory.getOldEnglish(getBaseContext()));
ll.addView(tv3);
tv3.setText(Html.fromHtml(getString(R.string.dream_2)));
ImageView divider3 = new ImageView(this);
LinearLayout.LayoutParams lp3 =
new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5);
lp3.setMargins(10, 10, 10, 10);
divider3.setLayoutParams(lp3);
divider3.setBackgroundColor(Color.RED);
ll.addView(divider3);
TextView tv4 = new TextView(this);
tv4.setGravity(Gravity.RIGHT);
tv4.setTextSize(30);
tv4.setTypeface(FontFactory.getOldEnglish(getBaseContext()));
ll.addView(tv4);
tv4.setText(Html.fromHtml(getString(R.string.dream_3)));
ImageView divider4 = new ImageView(this);
LinearLayout.LayoutParams lp4 =
new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5);
lp4.setMargins(10, 10, 10, 10);
divider4.setLayoutParams(lp4);
divider4.setBackgroundColor(Color.RED);
ll.addView(divider4);
TextView tv5 = new TextView(this);
tv5.setGravity(Gravity.RIGHT);
tv5.setTextSize(30);
tv5.setTypeface(FontFactory.getOldEnglish(getBaseContext()));
ll.addView(tv5);
tv5.setText(Html.fromHtml(getString(R.string.dream_4)));
ImageView divider5 = new ImageView(this);
LinearLayout.LayoutParams lp5 =
new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5);
lp5.setMargins(10, 10, 10, 10);
divider5.setLayoutParams(lp5);
divider5.setBackgroundColor(Color.RED);
ll.addView(divider5);
TextView tv6 = new TextView(this);
tv6.setGravity(Gravity.RIGHT);
tv6.setTextSize(30);
tv6.setTypeface(FontFactory.getOldEnglish(getBaseContext()));
ll.addView(tv6);
tv6.setText(Html.fromHtml(getString(R.string.dream_5)));
ImageView divider6 = new ImageView(this);
LinearLayout.LayoutParams lp6 =
new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5);
lp6.setMargins(10, 10, 10, 10);
divider6.setLayoutParams(lp6);
divider6.setBackgroundColor(Color.RED);
ll.addView(divider6);
}
}
Since all that is changing is the TextView setText() you can make this a for loop with a list of String inputs. For example:
LinearLayout ll = (LinearLayout)findViewById(R.id.linearLayout);
String[] textEntries = { getString(R.string.dream),
getString(R.string.dream_1),
getString(R.string.dream_2),
getString(R.string.dream_3),
getString(R.string.dream_4),
getString(R.string.dream_5)
};
for ( int i = 0; i < textEntries.length; i++)
{
TextView tv = new TextView(this);
tv.setGravity(Gravity.RIGHT);
tv.setTextSize(30);
tv.setTypeface(FontFactory.getOldEnglish(getBaseContext()));
ll.addView(tv);
tv.setText(Html.fromHtml(textEntries[i]));
ImageView divider = new ImageView(this);
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 5);
lp.setMargins(10, 10, 10, 10);
divider.setLayoutParams(lp);
divider.setBackgroundColor(Color.RED);
ll.addView(divider);
}
first of all it would be easier if you define your layouts in XML instead of adding them programmatically. You will profit from the benefits of the UI editor as well. :)
Second, you may want to use ListView and an Adapter to fill the list, since you do not want do duplicate the same tasks for each layout.
Maybe these two links are helpful:
1. http://developer.android.com/guide/topics/ui/declaring-layout.html
2. http://developer.android.com/guide/topics/ui/layout/listview.html
So, to finally answer your question, I would do the following:
Create a file, e.g. list_item.xml, with something like:
<LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:padding="10dp"><TextView your attributes.../></LinearLayout>
Create another layout, for instance main.xml, which contains a ListView. You can change the color of the divider like described here How to change the divider color in the listview?.
In your code (activity or fragment) add the main.xml as content view via setContentView().
Also in your code you should then add an adapter to the ListView which then populates the list for you. Here is an example How to customize listview using baseadapter
Finally, and since you separate the concerns (design and code), you could achieve what you want with just a few lines in your activity (the layout stuff would be in the xml and the population could be moved to a separated class like MyAdapter.java...)
Hope that helps...
Related
I need to be able to add a layout to my main layout from xml file many times programatically.
The problem is handling assigning ids of the new layout's views. See the code:
MainFragment.java
private int belowOfWhat = R.id.layout_header;
...
onActivityResult:
LayoutInflater myInflater = LayoutInflater.from(getContext());
RelativeLayout layout = (RelativeLayout) myInflater.inflate(R.layout.assignment_layout, null, false);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT);
//here problems start
//i want to position the new layout below the previously created layout
params.addRule(RelativeLayout.BELOW, belowOfWhat);
layout.setLayoutParams(params);
mRelativeLayout = rootView.findViewById(R.id.to_do_layout);
mRelativeLayout.addView(layout);
belowOfWhat = generateViewId();
idsOfToDos.add(belowOfWhat);
CheckBox assignmentCheckbox = (CheckBox)
//assignment_checkbox is an id of checkbox in the xml layout I add
rootView.findViewById(R.id.assignment_checkbox);
assignmentCheckbox.setId(belowOfWhat);
assignmentCheckbox.setText(mToDoInfo);
I don't know where the problem is, so here is how the app works now: I add a new layout, it gets positioned correctly below layout_header.
But when I add the second or more layouts they overlap each other on top of the app instead of being positioned one below the other.
I'd appreciate if you guided me to the solution of the problem.
If you don't need views'ids for other purposes you could solve more simple.
If I've understood what you are trying to do, what you need is a vertical LinearyLayout instead of a RelativeLayout, then subviews will be added one below each other
You have to use Relative Layout and use the following properties with that to align the views.
RelativeLayout.BELOW
RelativeLayout.RIGHT_OF
RelativeLayout.ALIGN_BOTTOM
RelativeLayout layout = new RelativeLayout(this);
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
layout.setLayoutParams(layoutParams);
RelativeLayout.LayoutParams params1 = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
RelativeLayout.LayoutParams params2 = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
RelativeLayout.LayoutParams params3 = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
RelativeLayout.LayoutParams params4 = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
TextView tv1 = new TextView(this);
tv1.setId(1);
tv1.setText("textView1");
TextView tv2 = new TextView(this);
params2.addRule(RelativeLayout.RIGHT_OF, tv1.getId());
tv2.setId(2);
tv2.setText("textView2");
TextView tv3 = new TextView(this);
params3.addRule(RelativeLayout.BELOW, tv1.getId());
tv3.setId(3);
tv3.setText("textView3");
TextView tv4 = new TextView(this);
params4.addRule(RelativeLayout.RIGHT_OF, tv3.getId());
params4.addRule(RelativeLayout.ALIGN_BOTTOM, tv3.getId());
tv4.setId(4);
tv4.setText("textView4");
layout.addView(tv1, params1);
layout.addView(tv2, params2);
layout.addView(tv3, params3);
layout.addView(tv4, params4);
hope so it gives you an idea how to align views pragmatically.
I dynamically declared some horizontal layouts witch contains some elements like ImageButtons, Buttons, and TextViews, these elements centrally oriented, all of the elements are oriented perfectly but the TextViews. I tried both declaring them directly like the rest of the elements and declaring them each inside a vertical layout but both didn't work:
that's my code:
// the layout params for the Horizontal Layout
LinearLayout.LayoutParams lp_icon = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
0, 1);
lp_icon.setMargins(10, 15, 5, 0);
// the layout params for the elements that contained in the horizontal LinearLayout
LinearLayout.LayoutParams lp_ineer_ver = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT, Gravity.CENTER);
// the layout params for the TextViews
LinearLayout.LayoutParams tests = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT, Gravity.CENTER);
// the layout params for the vertical layouts that contaion TextViews
LinearLayout.LayoutParams temp_lay = new LinearLayout.LayoutParams(
0,
LinearLayout.LayoutParams.WRAP_CONTENT, Gravity.CENTER);
temp_lay.weight = 1;
// the elements declaration
icon1.setLayoutParams(lp_icon);// icon1 is then horizontal LinearLayout
icon1.setBackgroundResource(R.drawable.ac_overlay);
icon1.setOrientation(LinearLayout.HORIZONTAL);
icon1.setTag(NORMAL);
// TextView contained in a vertical Layout
LinearLayout lay = new LinearLayout(this);
icon1.addView(lay);
lay.setLayoutParams(temp_lay);
lay.setBackgroundColor(Color.TRANSPARENT);
lay.setOrientation(LinearLayout.VERTICAL);
TextView text1 = new TextView(this);
lay.addView(text1);
text1.setLayoutParams(tests);
text1.setText("Master Bedroom");
text1.setTextSize(12);
text1.setTextColor(Color.WHITE);
// other elements
ImageButton image = new ImageButton(this);
icon1.addView(image);
image.setLayoutParams(lp_ineer_ver);
image.setImageResource(R.drawable.grpbuttonfocus6);
image.setBackgroundColor(Color.TRANSPARENT);
Button testbut = new Button(this);
icon1.addView(testbut);
testbut.setLayoutParams(lp_ineer_ver);
testbut.setText(" 8");
testbut.setTextSize(12);
testbut.setBackgroundColor(Color.TRANSPARENT);
testbut.setTextColor(Color.WHITE);
ImageButton testcol = new ImageButton(this);
icon1.addView(testcol);
testcol.setLayoutParams(lp_ineer_ver);
testcol.setImageResource(R.drawable.home_cool);
testcol.setBackgroundColor(Color.TRANSPARENT);
// the TextView that's declared directly in the Horizontal Layout
TextView text2 = new TextView(this);
icon1.addView(text2);
text2.setLayoutParams(lp_ineer_ver);
text2.setText("00");
text2.setTextSize(12);
Try this..
Juse two changes in your code like below for first textview icon1.addView(text1); and the last textview text2.setLayoutParams(tests);
First
TextView text1 = new TextView(this);
icon1.addView(text1); //correction here
text1.setLayoutParams(tests);
text1.setText("Master Bedroom");
text1.setTextSize(12);
and Second
TextView text2 = new TextView(this);
icon1.addView(text2);
text2.setLayoutParams(tests); //correction here
text2.setText("00");
text2.setTextSize(12);
textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
and you can have Try adding the following code for applying the layout params to the TextView
LayoutParams lp = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
lp.addRule(LinearLayout.CENTER_IN_PARENT);
textView.setLayoutParams(lp);
in XML file :
android:gravity = "center"
I'm trying to make a function, which would return a RelativeLayout, with an ImageView and a TextView in the center.
public RelativeLayout makeKey(String letter, int alfa)
{
final RelativeLayout RelBtn = new RelativeLayout(this);
RelBtn.setGravity(Gravity.CENTER);
RelBtn.setLayoutParams(new LayoutParams( LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT ));
final ImageView ivBg = new ImageView(this);
ivBg.setImageBitmap(bmBtnBg);
ivBg.setPadding(5, 5, 5, 5);
RelBtn.addView(ivBg);
TextView tvLetterSHD = new TextView(this);
tvLetterSHD.setTextSize(22);
tvLetterSHD.setTypeface(null, Typeface.BOLD);
tvLetterSHD.setTextColor(0xFF000000);
tvLetterSHD.setText(letter);
tvLetterSHD.setPadding(0, 3, 0, 0);
RelBtn.addView(tvLetterSHD);
TextView tvLetter = new TextView(this);
tvLetter.setTextSize(22);
tvLetter.setTypeface(null, Typeface.BOLD);
tvLetter.setTextColor(0xFFFFFFFF);
tvLetter.setText(letter);
RelBtn.addView(tvLetter);
return RelBtn;
}
Yet I'm getting something like this, as you can see, the TextView is off center.
Any ideas what might be wrong? Thanks! :)
U can set LayoutParams android:layout_centerInParent for child particles:
RelativeLayout lpCenter = new RelativeLayout.LayoutParams(w, h);
lpCenter.addRule(RelativeLayout.CENTER_IN_PARENT);
tvLetter.setLayoutParams(lpCenter);
In My application i want to create the layout as like below image:
So How to make it possible ?
I have done Something like below code:
public void showResult()
{
List<TextView> textListWord = new ArrayList<TextView>(tempEmployerList.size());
List<TextView> textListAnswer = new ArrayList<TextView>(tempEmployerList.size());
List<TextView> imageListAnswer = new ArrayList<TextView>(tempEmployerList.size());
for(int i = 0; i<=tempEmployerList.size()-1; i++)
{
LinearLayout innerLayout = new LinearLayout(this);
innerLayout.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
innerLayout.setBackgroundColor(0x00000000);
// set the Multiple TextView
TextView mHeading = new TextView(getApplicationContext());
TextView middleValue = new TextView(getApplicationContext());
TextView aImageView = new TextView(getApplicationContext());
mHeading.setText("\n"+"1");
//mHeading.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
mHeading.setTextColor(0xFFFF0000);
mHeading.setPadding(3, 0, 0, 0);
middleValue.setText("\n"+"2");
//middleValue.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
middleValue.setTextColor(0xFFFF0000);
middleValue.setGravity(Gravity.RIGHT);
middleValue.setPadding(2, 0, 9, 0);
aImageView.setText("\n"+"3");
//aImageView.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
aImageView.setGravity(Gravity.RIGHT);
aImageView.setTextColor(0xFF000000);
aImageView.setPadding(0, 0, 9, 0);
View line = new View(getApplicationContext());
//line.setOrientation(1);
line.setLayoutParams(new LayoutParams(2, android.view.ViewGroup.LayoutParams.FILL_PARENT));
line.setBackgroundColor(0xFF000000);
/**** Any other text view setup code ****/
innerLayout.addView(mHeading);
innerLayout.addView(middleValue);
innerLayout.addView(aImageView);
innerLayout.addView(line);
myLinearLayout.addView(innerLayout);
textListWord.add(mHeading);
textListAnswer.add(middleValue);
imageListAnswer.add(aImageView);
}
}
So please guide me that what more i have to do to create such view ?
Thanks.
try TableLayout and TableRow instead of LinearLayout.
You can create TableLayout in xml as well, as it, I think would be static and add TableRows. To Create a TableLayout in Java use,
TableLayout tblLayout=new TableLayout(this);
Set LayoutParams and other properties of table layout in java, like I am setting LayoutParams:
LayoutParams params=new LayoutParams(LayoutParams.Fill_Parent, LayoutParams.Wrap_Content);
tblLayout.setLayoutParams(params);
Create a loop for TableRows creation and insertion:
for(int i=0;i<arrList1.size();i++)
{
TableRow row=new TableRow(this);
row.setLayoutParams(params);
TextView lbl1=new TextView(this);
lbl1.setText(arrList1.get(i));
row.addView(lbl1);
TextView lbl2=new TextView(this);
lbl2.setText(arrList2.get(i));
row.addView(lbl2);
TextView lbl3=new TextView(this);
lbl3.setText(arrList3.get(i));
row.addView(lbl3);
tblLayout.addView(row);
}
I'm trying to position items inside my RelativeLayout so that the image appears first, the title to the right of it, and the content below the image area. Those three content items appear on top of each other. I understand that my LayoutParams probably aren't being set, but I'm not sure why or how to fix it. Any help? Thanks.
RelativeLayout rl = (RelativeLayout)findViewById(R.id.contentTable);
for(int i=0;i<itemIndexes.size();i++)
{
RelativeLayout item = new RelativeLayout(this);
item.setId(i);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(320, RelativeLayout.LayoutParams.WRAP_CONTENT);
if(i>0)
{
lp.addRule(RelativeLayout.RIGHT_OF,i-1);
}
item.setLayoutParams(lp);
ImageView iv = new ImageView(this);
if(globals.myHitetItems.get(itemIndexes.get(i)).image!=-1)
{
iv.setImageResource(globals.myHitetItems.get(itemIndexes.get(i)).image);
item.addView(iv);
}
else
{
iv.setImageResource(R.drawable.noimage);
item.addView(iv);
}
RelativeLayout.LayoutParams text1lp =new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.FILL_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
text1lp.addRule(RelativeLayout.RIGHT_OF,iv.getId());
TextView tv = new TextView(this);
tv.setText(globals.myHitetItems.get(itemIndexes.get(i)).name);
tv.setTextSize(20);
tv.setPadding(3, 3, 3, 3);
tv.setLayoutParams(text1lp);
item.addView(tv);
RelativeLayout.LayoutParams text2lp=new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.FILL_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
text2lp.addRule(RelativeLayout.BELOW,iv.getId());
tv = new TextView(this);
tv.setText(globals.myHitetItems.get(itemIndexes.get(i)).content);
tv.setTextSize(20);
tv.setPadding(3, 3, 3, 3);
tv.setLayoutParams(lp);
item.addView(tv);
rl.addView(item);
}
That looks painful to debug. It sounds like maybe the relative rules aren't being set or accepted. I suggest simplifying to a static test set to verify that one row of views can be set relative to each other (and ensure that one of them is anchored to the layout itself).