Examples with OnPreDrawListener android.view.ViewTreeObserver.OnPreDrawListener used on opensource projects

Example 6 with OnPreDrawListener

use of android.view.ViewTreeObserver.OnPreDrawListener in project SeaStar by 13120241790.

the class DragPointView method initbg.

private void initbg() {
    setGravity(Gravity.CENTER);
    getViewTreeObserver().addOnPreDrawListener(new OnPreDrawListener() {

        @SuppressWarnings("deprecation")
        @Override
        public boolean onPreDraw() {
            if (!initBgFlag) {
                DragPointView.this.setBackgroundDrawable(createStateListDrawable((getHeight() > getWidth() ? getHeight() : getWidth()) / 2, backgroundColor));
                initBgFlag = true;
                return false;
            }
            return true;
        }
    });
}

Example 7 with OnPreDrawListener

use of android.view.ViewTreeObserver.OnPreDrawListener in project GestureViews by alexvasilkov.

the class FullImageActivity method runAfterImageDraw.

/**
 * Runs provided action after image is drawn for the first time.
 */
private void runAfterImageDraw(final Runnable action) {
    image.getViewTreeObserver().addOnPreDrawListener(new OnPreDrawListener() {

        @Override
        public boolean onPreDraw() {
            image.getViewTreeObserver().removeOnPreDrawListener(this);
            runOnNextFrame(action);
            return true;
        }
    });
    image.invalidate();
}

Example 8 with OnPreDrawListener

use of android.view.ViewTreeObserver.OnPreDrawListener in project libgdx by libgdx.

the class AndroidOnscreenKeyboard method setVisible.

public void setVisible(boolean visible) {
    if (visible && dialog != null) {
        dialog.dismiss();
        dialog = null;
    }
    if (visible && dialog == null && !input.isPeripheralAvailable(Peripheral.HardwareKeyboard)) {
        handler.post(new Runnable() {

            @Override
            public void run() {
                dialog = createDialog();
                dialog.show();
                handler.post(new Runnable() {

                    @Override
                    public void run() {
                        dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
                        InputMethodManager input = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
                        if (input != null)
                            input.showSoftInput(textView, InputMethodManager.SHOW_FORCED);
                    }
                });
                final View content = dialog.getWindow().findViewById(Window.ID_ANDROID_CONTENT);
                content.getViewTreeObserver().addOnPreDrawListener(new OnPreDrawListener() {

                    int[] screenloc = new int[2];

                    private int keyboardHeight;

                    private boolean keyboardShowing;

                    @Override
                    public boolean onPreDraw() {
                        content.getLocationOnScreen(screenloc);
                        keyboardHeight = Math.abs(screenloc[1]);
                        if (keyboardHeight > 0)
                            keyboardShowing = true;
                        if (keyboardHeight == 0 && keyboardShowing) {
                            dialog.dismiss();
                            dialog = null;
                        }
                        return true;
                    }
                });
            }
        });
    } else {
        if (!visible && dialog != null) {
            dialog.dismiss();
        }
    }
}

Example 9 with OnPreDrawListener

use of android.view.ViewTreeObserver.OnPreDrawListener in project AisenWeiBo by wangdan.

the class WallpaperViewer method init.

public void init() {
    setBackgroundResource(R.drawable.wallpaper_viewer_bg);
    getViewTreeObserver().addOnPreDrawListener(new OnPreDrawListener() {

        @Override
        public boolean onPreDraw() {
            getViewTreeObserver().removeOnPreDrawListener(this);
            // 初始化 innerView
            mInnerView = new View(getContext());
            mInnerView.setLayoutParams(new LayoutParams((int) (getWidth() * INN_WIDTH_PERCENTS), LayoutParams.MATCH_PARENT));
            mInnerView.setBackgroundResource(R.drawable.wallpaper_viewer_inn_bg);
            mInnCenterPositionX = (int) (getWidth() * (1 - INN_WIDTH_PERCENTS) / 2);
            setInnViewPositionX(mInnCenterPositionX);
            addView(mInnerView);
            return true;
        }
    });
}

Example 10 with OnPreDrawListener

use of android.view.ViewTreeObserver.OnPreDrawListener in project UltimateAndroid by cymcsg.

the class RotaryView method init.

public void init() {
    paint = new Paint();
    paint.setAntiAlias(true);
    paint.setStyle(Paint.Style.FILL_AND_STROKE);
    paintWhite = new Paint();
    paintWhite.setAntiAlias(true);
    paintWhite.setColor(0xffffffff);
    paintWhite.setStyle(Paint.Style.FILL_AND_STROKE);
    bitmapRefreshPaint = new Paint();
    bitmapRefreshPaint.setAntiAlias(true);
    setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
    // 绘制完毕
    this.getViewTreeObserver().addOnPreDrawListener(new OnPreDrawListener() {

        public boolean onPreDraw() {
            Init();
            getViewTreeObserver().removeOnPreDrawListener(this);
            return false;
        }
    });
}