jie-meng

{"lastUpload":"2019-02-27T02:08:16.923Z","extensionVersion":"v3.2.4"}

jie-meng

static void restart() {
  killBackgroundProcesses();
  Runtime.getRuntime().addShutdownHook(new Thread() {
      @Override
      public void run() {
          super.run();
          PackageManager packageManager = context.getPackageManager();
          Intent intent = packageManager.getLaunchIntentForPackage(context.getPackageName());
          ComponentName componentName = intent.getComponent();
          Intent mainIntent = Intent.makeRestartActivityTask(componentName);

jie-meng

//The behavior you are experiencing is caused by an issue that exists in some Android launchers since API 1. You can find details about the bug as well as possible solutions here: https://code.google.com/p/android/issues/detail?id=2373.
//It's a relatively common issue on Samsung devices as well as other manufacturers that use a custom launcher/skin. I haven't seen the issue occur on a stock Android launcher.
//Basically, the app is not actually restarting completely, but your launch Activity is being started and added to the top of the Activity stack when the app is being resumed by the launcher. You can confirm this is the case by clicking the back button when you resume the app and are shown the launch Activity. You should then be brought to the Activity that you expected to be shown when you resumed the app.
//The workaround I chose to implement to resolve this issue is to check for the Intent.CATEGORY_LAUNCHER category and Intent.ACTION_MAIN action in the intent that starts the initial Activity. If those

jie-meng

//anywhere in your code
...
mState = HIDE_MENU; // setting state
invalidateOptionsMenu(); // now onCreateOptionsMenu(...) is called again
...

@Override
public boolean onCreateOptionsMenu(Menu menu)
{
    // inflate menu from xml

jie-meng

public static View createProgressView(Activity activity) {
    ViewGroup viewGroup = (ViewGroup) activity.findViewById(android.R.id.content);
    View progressView = LayoutInflater.from(activity).inflate(R.layout.view_progress_bar, viewGroup, false);
    viewGroup.addView(progressView);
    return progressView;
}

jie-meng

<Button
    android:id="@+id/btn_next"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@color/dark_blue"
    android:foreground="?attr/selectableItemBackgroundBorderless"
    android:textAllCaps="false"
    android:textSize="@dimen/textsize_button"
    android:textColor="@android:color/white"
    android:text="@string/next"/>

jie-meng

public static void applyDim(@NonNull Activity activity){
    float dimAmount = 0.5f;
    ViewGroup rootView = (ViewGroup) (activity.getWindow().getDecorView().getRootView());
    Drawable dim = new ColorDrawable(Color.BLACK);
    dim.setBounds(0, 0, rootView.getWidth(), rootView.getHeight());
    dim.setAlpha((int) (255 * dimAmount));

    ViewGroupOverlay overlay = rootView.getOverlay();
    overlay.add(dim);
}

jie-meng

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <integer name="design_snackbar_text_max_lines">5</integer>
</resources>

jie-meng

viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
    @Override
    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

    }

    @Override
    public void onPageSelected(int position) {
      invalidateActionbar(position);
    }

jie-meng

editText.setFilters(new InputFilter[] {
    new InputFilter() {
        @Override
        public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
            if (!somePattern.matcher(source).matches()) {
                //return empty to refuse
                return "";
            } else {
                //return null if accept
                return null;