Android click on push notification create new activity instead of resume same activity from background

To solve this issue you need to change android:launchMode="singleTop" in AndroidMenifest.xml file for that activity.

Android Webview loaddata not changing content second time

Android Webview's loaddata method have issue.
use following way to load data to webview

webView.loadDataWithBaseURL(null, htmlContent, null, "utf-8", null);

Android web view set wrap_content height

Use following code to set android web view set wrap_content height

• webview's parent should have match parent height
• and set webview as wrap_content height

---Layout file ---

<ScrollView
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            android:padding="10dp">

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:layout_margin="@dimen/twenty"
                android:src="@drawable/img_sc2_logo" />

            <WebView
                android:id="@+id/wvInfo"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">
            </WebView>
       </LinearLayout>
</ScrollView>

---java file code---
Following is IMP part

binding.wvInfo.loadUrl(ApiRequestUtil.PAGE_APP_WELCOME);
        binding.wvInfo.getSettings().setLoadWithOverviewMode(true);
        binding.wvInfo.getSettings().setUseWideViewPort(true);
        binding.wvInfo.getSettings().setJavaScriptEnabled(true);
        binding.wvInfo.getSettings().setBuiltInZoomControls(false);

        ViewTreeObserver viewTreeObserver  = binding.wvInfo.getViewTreeObserver();

        viewTreeObserver.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
            @Override
            public boolean onPreDraw() {
                int height = binding.wvInfo.getMeasuredHeight();
                if( height != 0 ){
//                    Toast.makeText(getActivity(), "height:"+height,Toast.LENGTH_SHORT).show();
                    binding.wvInfo.getViewTreeObserver().removeOnPreDrawListener(this);
                }
                return false;
            }
        });

Android get image from view

To get bitmap from any view use following code.

rootView.setDrawingCacheEnabled(true);
rootView.layout(0, 0, rootView.getWidth(), rootView.getHeight());
rootView.buildDrawingCache();
Bitmap bitmap = Bitmap.createBitmap(rootView.getDrawingCache());
rootView.setDrawingCacheEnabled(false);

Android popup menu display causes RecyclerView scroll up

If you using android.support.v7.widget.PopupMenu then you may face this issue. Simple solution is to use android.widget.PopupMenu.

But if you need to show icons in your popupMenu then you have to use android.support.v7.widget.PopupMenu. so you should apply following solution.

You can have your AnchorView override requestRectangleOnScreen() and return false. This will prevent any parent ScrollView or RecyclerView from scrolling.

So, For ex If I have anchor view as ImageView then code should be like following.

public class MenuImageView extends ImageView {
    public MenuImageView(Context context) {
        super(context);
    }

    public MenuImageView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public MenuImageView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    public MenuImageView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
    }

// THIS IS IMP METHOD (RETURN FALSE). ADD IT SO YOUR RECYCLER VIEW WILL NOT SCROLL WHEN YOU CLICK ON MENU.
    @Override
    public boolean requestRectangleOnScreen(Rect rectangle, boolean immediate) {
        return false;
    }
}