In fact i know how to open an activity by clicking on a button
But i can't do it in frame layout
i try this code but it didn't help me.
FrameLayout ff=(FrameLayout)findViewById(R.id.btn);
ff.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent=new Intent(listActivity.this,bookActivity.class);
startActivity(intent);
}
});
that's all
EDITES:
this my activity_main :
<LinearLayout
android:id="#+id/linbook"
android:layout_margin="15dp"
android:layout_toRightOf="#+id/linjozve"
android:layout_width="130dp"
android:layout_height="180dp"
android:orientation="vertical">
<FrameLayout
android:id="#+id/ketabbtn"
android:layout_width="130dp"
android:layout_height="130dp">
<ImageButton
android:layout_weight="1"
android:id="#+id/btntopright"
android:layout_width="130dp"
android:layout_height="130dp"
android:background="#drawable/rgreen"/>
<ImageButton
android:background="#drawable/book"
android:layout_gravity="center"
android:layout_width="80dp"
android:layout_height="80dp" />
</FrameLayout>
<TextView
android:layout_marginTop="15dp"
android:layout_gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="book"/>
</LinearLayout>
thanks
Try to set android:clickable in the xml.
If that doesn't work try to create a custom layout:
By default, onInterceptTouchEvent returns false. So include following code and use this CustomClickableFrameLayout instead of framelayout
public class CustomClickableFrameLayout extends FrameLayout {
private OnClickListener mOnClickListener;
#Override
public void setOnClickListener(OnClickListener l) {
super.setOnClickListener(l);
mOnClickListener = l;
}
#Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
return mOnClickListener != null;
}
// Standard constructors — just pass everything
public CustomClickableFrameLayout (final Context context) {
super(context);
}
public CustomClickableFrameLayout (final Context context, final AttributeSet attrs) {
super(context, attrs);
}
public CustomClickableFrameLayout (final Context context, final AttributeSet attrs, final int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
#TargetApi(Build.VERSION_CODES.LOLLIPOP)
public CustomClickableFrameLayout (final Context context, final AttributeSet attrs, final int defStyleAttr, final int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
}
The problem is it is quite hard to click on a FrameLayout if it is covered by other views. In your case, the framelayout and the imagebutton have the same size 130x130. This explains why the touch cannot reach the layout.
To make sure you can click it, add some padding between the layout and its childs. (I reduced the size of its child)
<FrameLayout
android:padding="10dp"
android:id="#+id/ketabbtn"
android:layout_width="130dp"
android:layout_height="130dp">
<ImageButton
android:layout_weight="1"
android:id="#+id/btntopright"
android:layout_width="120dp"
android:layout_height="120dp"
android:background="#drawable/rgreen"/>
<ImageButton
android:background="#drawable/book"
android:layout_gravity="center"
android:layout_width="80dp"
android:layout_height="80dp" />
</FrameLayout>
Also, you used wrong ID. So change this:
FrameLayout ff=(FrameLayout)findViewById(R.id.btn);
To this:
FrameLayout ff=(FrameLayout)findViewById(R.id.ketabbtn);
So you can click the padding space to trigger the onClick event.
Related
Java
DeviceSwitch.setLayoutResource(R.layout.settings);
DeviceSwitch.setKey(CategoryKey);
DeviceSwitch.setDefaultValue(true);
DeviceSwitch.setEnabled(true);
DeviceSwitch.setSelectable(true);
DevicesShowScreen.addPreference(DeviceSwitch);
if this code run --> DeviceSwitch.setLayoutResource(R.layout.settings);
Switch not checked in Android 6.0
This string --> DeviceSwitch.setCheked(true);
Not work in Android 6.0
in Android 7.0 switch preference from layout checked normal
Layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/listPreferredItemHeightSmall"
android:gravity="center_vertical"
android:clipToPadding="false">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:paddingTop="16dp"
android:paddingBottom="16dp"
android:layout_marginStart="15dp">
<TextView android:id="#android:id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true"
android:textAppearance="?attr/textAppearanceListItem"
android:ellipsize="marquee" />
<TextView android:id="#android:id/summary"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#android:id/title"
android:layout_alignStart="#android:id/title"
android:maxLines="10"
android:ellipsize="end" />
</RelativeLayout>
<Switch
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:focusable="false"
android:clickable="false"
android:gravity="center"
android:layout_marginEnd="15dp"
android:id="#android:id/switch_widget"
android:checked="false" />
</LinearLayout>
It's because sdk 23 uses com.android.internal.R.id.switchWidget identifier instead of com.android.internal.R.id.switch_widget
Workaround is quite simple. Just inherit SwitchPreference class and duplicate some code:
public class MySwitchPreference extends SwitchPreference {
private final Listener mListener = new Listener();
private class Listener implements CompoundButton.OnCheckedChangeListener {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (!callChangeListener(isChecked)) {
// Listener didn't like it, change it back.
// CompoundButton will make sure we don't recurse.
buttonView.setChecked(!isChecked);
return;
}
MySwitchPreference.this.setChecked(isChecked);
}
}
public MySwitchPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
public MySwitchPreference(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
public MySwitchPreference(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MySwitchPreference(Context context) {
super(context);
}
#Override
protected void onBindView(View view) {
super.onBindView(view);
View checkableView = view.findViewById(R.id.switch_widget);
if (checkableView != null && checkableView instanceof Checkable) {
if (checkableView instanceof Switch) {
final Switch switchView = (Switch) checkableView;
switchView.setOnCheckedChangeListener(null);
}
((Checkable) checkableView).setChecked(isChecked());
if (checkableView instanceof Switch) {
final Switch switchView = (Switch) checkableView;
switchView.setTextOn(getSwitchTextOn());
switchView.setTextOff(getSwitchTextOff());
switchView.setOnCheckedChangeListener(mListener);
}
}
}
}
And of course don't forget to replace android:id="#android:id/switch_widget" to android:id="#+id/switch_widget" in your widget switcher layout.
Say I have this class MyView:
public class MyView extends GLSurfaceView {
private MyRenderer mRenderer;
public MyView(Context ctx, AttributeSet attrs) {
super(ctx, attrs);
init(ctx);
}
private void init(Context ctx) {
mRenderer = new MyRenderer(ctx);
setRenderer(mRenderer);
}
#Override
public void setBackground(Drawable background) {
mRenderer.setBackground(background);
}
}
That is inflated by MyActivity like this:
public class MyActivity extends Activity {
private MyView mView;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
init();
}
protected void init() {
setContentView(R.layout.my_layout);
mView = (MyView) findViewById(R.id.my_view);
}
}
To my knowledge setBackground is called by the inflater in setContentView, before init is called in MyView, so mRenderer has not been initialized yet.
It seems like a catch 22, because the view's attributes can't be set without the view's initialization, which happens after the attributes are set.
This is the layout:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/my_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#drawable/background" >
<com.developer.app.MyView
android:id="#+id/my_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/background"
/>
<TextView
android:id="#+id/left_arrow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:background="#drawable/left_arrow"
/>
<TextView
android:id="#+id/right_arrow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:background="#drawable/right_arrow"
/>
<TextView
android:id="#+id/home_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginRight="10dp"
android:layout_marginTop="10dp"
android:background="#drawable/home"
/>
</RelativeLayout>
You are right. setBackground() is called from View's constructor if android:background attribute was parsed. In your case it called here:
super(ctx, attrs);
If you want to set background to mRenderer, you can do it in init:
private void init(Context ctx) {
mRenderer = new MyRenderer(ctx);
setRenderer(mRenderer);
final Drawable background = getBackground();
if (background != null) {
mRenderer.setBackground(background);
}
}
and add a null-check in setBackground, because this method can be called from superclass' constructor before you set some value to mRenderer
#Override
public void setBackground(Drawable background) {
if (mRenderer != null) {
mRenderer.setBackground(background);
}
}
What i understood from your question. You need attributes of views in oncreate(). But unable to do so. the reason is at that point UI is not initialized yet. there is work around.
this link might help.
getWidth() and getHeight() of View returns 0
You have initialize its three functions for example and xml and java is as you are doing it.
public class MyEditText extends EditText {
public MyEditText(Context context) {
super(context);
this.setTextColor(Color.parseColor("#4789da"));
this.setBackgroundResource(R.drawable.edittext_back);
this.setTextSize(18);
this.setPadding(5,5,5,5);
}
public MyEditText(Context context, AttributeSet attrs) {
super(context, attrs);
this.setTextColor(Color.parseColor("#4789da"));
this.setBackgroundResource(R.drawable.edittext_back);
this.setTextSize(18);
this.setPadding(5,5,5,5);
}
public MyEditText(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
this.setTextColor(Color.parseColor("#4789da"));
this.setBackgroundResource(R.drawable.edittext_back);
this.setTextSize(18);
this.setPadding(5,5,5,5);
}
}
ViewHolder is inflated based on this layout:
Adding listener to the whole ViewHolder, or be exact to itemView:
userSettingHolder.itemView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
But only the first item the imageView can active the listener. Why not the whole item, with not last two 'sub'-recycleview?
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="66dp">
<ImageView
android:id="#+id/icon"
android:layout_width="66dp"
android:layout_height="66dp"
android:padding="0dp" />
<android.support.v7.widget.RecyclerView
android:id="#+id/rw1"
android:layout_marginStart="66dp"
android:layout_marginTop="0dp"
android:layout_marginBottom="33dp"
android:layout_height="33dp"
android:layout_width="match_parent"/>
<android.support.v7.widget.RecyclerView
android:id="#+id/rw2"
android:layout_marginStart="66dp"
android:layout_marginTop="33dp"
android:layout_marginBottom="0dp"
android:layout_height="33dp"
android:layout_width="match_parent"/>
</RelativeLayout>
Here when you click on ImageView the touch is passed to the parent which will be itemView., But when you click on RecyclerView it consumes the touch.
I suggest you add this property to both RecyclerView in xml
android:clickable="false"
If this didn't work then you have to subclass the RecyclerView and override the onInterceptTouchEvent method.
public class ScrollThroughRecyclerView extends RecyclerView {
public ScrollThroughRecyclerView(Context context) {
super(context);
}
public ScrollThroughRecyclerView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ScrollThroughRecyclerView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
#Override
public boolean dispatchTouchEvent(MotionEvent ev) {
return false;
}
#Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
return false;
}
}
Then in your xml instead of
<android.support.v7.widget.RecyclerView use <your.file.path.ScrollThroughRecyclerView
But both solutions will make the RecyclerView not clickable, and ofcourse not scrollable.
Hello I am new in Android development, and I've read various threads which talked about the fact that a ListView should not be inside a Scrollview and need to wrap in linear or relative layout.
But I have a this layout
<com.itmind.spac.spacapp.custom_extends.CustomScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/scrollViewreceipt"
>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<include
android:id="#+id/include1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
layout="#layout/toolbar" />
<Spinner
android:id="#+id/customers_spinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:theme="#android:style/Theme.Holo.Light.DarkActionBar"
/>
<Spinner
android:id="#+id/venues_spinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:theme="#android:style/Theme.Holo.Light.DarkActionBar"
/>
<Spinner
android:id="#+id/workgroup_spinner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:theme="#android:style/Theme.Holo.Light.DarkActionBar"
/>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minHeight="150dp">
<ListView
android:id="#+id/activityList"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="15dp"
android:minHeight="150dp"
/>
</LinearLayout >
<android.gesture.GestureOverlayView
android:id="#+id/signaturePad"
android:layout_width="match_parent"
android:layout_height="80dp"
android:layout_weight="5"
android:background="#d3d3d3"
android:eventsInterceptionEnabled="true"
android:fadeEnabled="false"
android:gestureColor="#333"
android:gestureStrokeLengthThreshold="0.1"
android:gestureStrokeType="multiple"
android:fadeOffset="5000"
android:orientation="vertical" >
</android.gesture.GestureOverlayView>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="testImage"
android:text="testami"/>
</LinearLayout>
And this is my custoScrollView
public class CustomScrollView extends ScrollView {
private boolean enableScrolling = true;
public boolean isEnableScrolling() {
return enableScrolling;
}
public void setEnableScrolling(boolean enableScrolling) {
this.enableScrolling = enableScrolling;
}
public CustomScrollView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public CustomScrollView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomScrollView(Context context) {
super(context);
}
#Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if (isEnableScrolling()) {
return super.onInterceptTouchEvent(ev);
} else {
return false;
}
}
#Override
public boolean onTouchEvent(MotionEvent ev) {
if (isEnableScrolling()) {
return super.onTouchEvent(ev);
} else {
return false;
}
}
}
I need customclass scroll view beacause I can set enable scroll when i touch on
so in my activity that implements GestureOverlayView.OnGestureListener I have:
#Override
public void onGestureStarted(GestureOverlayView overlay, MotionEvent event) {
myScrollView.setEnableScrolling(false);
}
#Override
public void onGestureEnded(GestureOverlayView overlay, MotionEvent event) {
myScrollView.setEnableScrolling(true);
}
So many elements and I need to scrollView for view all elements.
Inside my scrollView I have a listView that I populate with data retrieve from db.
My problem is that my Listview collapse, that shows one line and I see and scroll in one row.
I tried with min-height but doesn't work, and if I put a layout height in Listview, I cant scroll this list.
How can I do this?
I would a list View in a long page so I have to use scrollview or are there solutions?
Below given custom ListView class will make height of your Listview based on its content inside ScrollView. Use it instead of ListView in your xml-layout file same way you use your CustomScrollView.
public class CustomListView extends ListView {
// private boolean expanded;
public CustomListView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomListView(Context context) {
super(context);
}
public CustomListView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
#Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, expandSpec);
}
}
Hope this will help you.
Note :- As per this link of Android developer website, We should never use a ScrollView with a ListView, because ListView takes care of its own vertical scrolling.
I am trying to make a composite view by extending RelativeLayout It consists of three widgets. An ImageView , a ProgressBar and a TextView . But for some reason I am unable to see the ImageView and TextView. Attaching code below. Any suggestions?
public class ProgressView extends RelativeLayout {
#InjectView(R.id.ivItemPic)
ImageView ivItemPic;
#InjectView(R.id.tvMessage)
TextView tvMessage;
#InjectView(R.id.pbLoading)
ProgressBar pbLoading;
int defColor = 0xff669900;
public ProgressView(Context context) {
super(context);
init(context,null, 0);
}
public ProgressView(Context context, AttributeSet attrs) {
super(context, attrs);
init(context,attrs, 0);
}
public ProgressView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init(context,attrs, defStyle);
}
public void init(Context context, AttributeSet attrs, int defStyleAttr) {
inflate(context, R.layout.component_progress_view, this);
ButterKnife.inject(this);
TypedArray aTypedArray = context.obtainStyledAttributes(attrs, R.styleable.ProgressView, defStyleAttr, 0);
final int textSize = aTypedArray.getDimensionPixelSize(
R.styleable.ProgressView_pvTextSize,
dipsToPix(R.dimen.font_medium));
final int textColor = aTypedArray.getColor(R.styleable.ProgressView_pvTextColor,defColor);
final Drawable imgSrc = aTypedArray.getDrawable(R.styleable.ProgressView_pvImageSrc);
ivItemPic.setImageDrawable(imgSrc);
tvMessage.setTextSize(textSize);
tvMessage.setTextColor(textColor);
aTypedArray.recycle();
}
/**
* Helper method to convert dips to pixels.
*/
private int dipsToPix(float dps) {
return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dps,
getResources().getDisplayMetrics());
}
public void setText(String message) {
tvMessage.setText(message);
}
public void imageVisibility(boolean visible) {
ivItemPic.setVisibility(visible ? VISIBLE : GONE);
}
public void progressIndeterminate(boolean indeterminate) {
pbLoading.setIndeterminate(indeterminate);
}
public void setItemImage(Drawable drawable) {
ivItemPic.setImageDrawable(drawable);
}
public void setItemImageRes(int res) {
ivItemPic.setImageResource(res);
}
The XML
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent">
<ImageView
android:id="#+id/ivItemPic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="#+id/pbLoading"
android:layout_centerHorizontal="true"
android:layout_marginTop="#dimen/activity_vertical_margin"
android:layout_marginBottom="#dimen/activity_vertical_margin"
android:src="#drawable/ic_action_info"/>
<ProgressBar
android:id="#+id/pbLoading"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/activity_vertical_margin"
android:layout_marginBottom="#dimen/activity_vertical_margin"
android:layout_centerInParent="true"
style="?android:attr/progressBarStyleHorizontal"
android:indeterminate="true"
android:visibility="visible" />
<TextView
android:id="#+id/tvMessage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/pbLoading"
android:layout_marginTop="#dimen/activity_vertical_margin"
android:layout_marginRight="#dimen/horizontal_margin"
android:layout_marginLeft="#dimen/horizontal_margin"
android:textSize="#dimen/font_medium"
android:textColor="#color/grey_normal"
android:gravity="center"
android:text="Message"/>
The Layout
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:errorview="http://schemas.android.com/apk/res-auto"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/background_color"
tools:context="com.mobility.ui.SyncFragment">
<com.mobility.customviews.SuccessView
android:id="#+id/svSuccess"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="visible"
android:gravity="center"
app:svText="Success"
app:svTextColor="#android:color/holo_green_dark"/>
<tr.xip.errorview.ErrorView
android:id="#+id/evError"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
errorview:ev_errorSubtitle="#string/err_conn"
errorview:ev_errorTitle="#string/oops"
errorview:ev_showRetryButton="true"
errorview:ev_showSubtitle="true"
errorview:ev_showTitle="true"
android:gravity="center"
android:visibility="gone"
android:paddingLeft="#dimen/horizontal_margin"
android:paddingRight="#dimen/horizontal_margin"
errorview:ev_retryButtonTextColor="#color/error_retry"/>
<com.mobility.customviews.ProgressView
android:id="#+id/progressView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:pvText="ZzZZ"/>