Java Code Examples for android.view.View#willNotCacheDrawing()

The following examples show how to use android.view.View#willNotCacheDrawing() . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source Project: Noyze   File: Utils.java    License: Apache License 2.0 5 votes vote down vote up
public static Bitmap loadBitmapFromViewCache(View v) {
    v.clearFocus();
    v.setPressed(false);

    boolean willNotCache = v.willNotCacheDrawing();
    v.setWillNotCacheDrawing(false);

    // Reset the drawing cache background color to fully transparent
    // for the duration of this operation
    int color = v.getDrawingCacheBackgroundColor();
    v.setDrawingCacheBackgroundColor(0);

    if (color != 0) {
        v.destroyDrawingCache();
    }
    v.buildDrawingCache();
    Bitmap cacheBitmap = v.getDrawingCache();
    if (null == cacheBitmap) return null;
    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);

    // Restore the view
    v.destroyDrawingCache();
    v.setWillNotCacheDrawing(willNotCache);
    v.setDrawingCacheBackgroundColor(color);

    return bitmap;
}
 
Example 2
Source Project: Common   File: ScreenUtils.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Return the bitmap of screen.
 *
 * @param activity          The activity.
 * @param isDeleteStatusBar True to delete status bar, false otherwise.
 * @return the bitmap of screen
 */
public static Bitmap screenShot(@NonNull final Activity activity, boolean isDeleteStatusBar) {
    View decorView = activity.getWindow().getDecorView();
    boolean drawingCacheEnabled = decorView.isDrawingCacheEnabled();
    boolean willNotCacheDrawing = decorView.willNotCacheDrawing();
    decorView.setDrawingCacheEnabled(true);
    decorView.setWillNotCacheDrawing(false);
    Bitmap bmp = decorView.getDrawingCache();
    if (bmp == null) {
        decorView.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
                View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
        decorView.layout(0, 0, decorView.getMeasuredWidth(), decorView.getMeasuredHeight());
        decorView.buildDrawingCache();
        bmp = Bitmap.createBitmap(decorView.getDrawingCache());
    }
    if (bmp == null) {
        return null;
    }
    DisplayMetrics dm = new DisplayMetrics();
    activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
    Bitmap ret;
    if (isDeleteStatusBar) {
        Resources resources = activity.getResources();
        int resourceId = resources.getIdentifier("status_bar_height", "dimen", "android");
        int statusBarHeight = resources.getDimensionPixelSize(resourceId);
        ret = Bitmap.createBitmap(bmp,
                0,
                statusBarHeight,
                dm.widthPixels,
                dm.heightPixels - statusBarHeight);
    } else {
        ret = Bitmap.createBitmap(bmp, 0, 0, dm.widthPixels, dm.heightPixels);
    }
    decorView.destroyDrawingCache();
    decorView.setWillNotCacheDrawing(willNotCacheDrawing);
    decorView.setDrawingCacheEnabled(drawingCacheEnabled);
    return ret;
}
 
Example 3
Source Project: timecat   File: DragDropHelper.java    License: Apache License 2.0 5 votes vote down vote up
private Bitmap getViewBitmap(View v) {
    v.clearFocus();
    v.setPressed(false);

    boolean willNotCache = v.willNotCacheDrawing();
    v.setWillNotCacheDrawing(false);

    int color = v.getDrawingCacheBackgroundColor();
    v.setDrawingCacheBackgroundColor(0);

    if (color != 0) {
        v.destroyDrawingCache();
    }
    v.buildDrawingCache();
    Bitmap cacheBitmap = v.getDrawingCache();
    if (cacheBitmap == null) {
        return null;
    }

    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);

    v.destroyDrawingCache();
    v.setWillNotCacheDrawing(willNotCache);
    v.setDrawingCacheBackgroundColor(color);

    return bitmap;
}
 
Example 4
Source Project: LB-Launcher   File: DragController.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Draw the view into a bitmap.
 */
Bitmap getViewBitmap(View v) {
    v.clearFocus();
    v.setPressed(false);

    boolean willNotCache = v.willNotCacheDrawing();
    v.setWillNotCacheDrawing(false);

    // Reset the drawing cache background color to fully transparent
    // for the duration of this operation
    int color = v.getDrawingCacheBackgroundColor();
    v.setDrawingCacheBackgroundColor(0);
    float alpha = v.getAlpha();
    v.setAlpha(1.0f);

    if (color != 0) {
        v.destroyDrawingCache();
    }
    v.buildDrawingCache();
    Bitmap cacheBitmap = v.getDrawingCache();
    if (cacheBitmap == null) {
        Log.e(TAG, "failed getViewBitmap(" + v + ")", new RuntimeException());
        return null;
    }

    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);

    // Restore the view
    v.destroyDrawingCache();
    v.setAlpha(alpha);
    v.setWillNotCacheDrawing(willNotCache);
    v.setDrawingCacheBackgroundColor(color);

    return bitmap;
}
 
Example 5
Source Project: XFrame   File: XBitmapUtils.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * 把一个View的对象转换成bitmap
 *
 * @param view View
 * @return Bitmap
 */
public static Bitmap getBitmapFromView2(View view) {
    if (view == null) {
        return null;
    }
    view.clearFocus();
    view.setPressed(false);

    // 能画缓存就返回false
    boolean willNotCache = view.willNotCacheDrawing();
    view.setWillNotCacheDrawing(false);
    int color = view.getDrawingCacheBackgroundColor();
    view.setDrawingCacheBackgroundColor(0);
    if (color != 0) {
        view.destroyDrawingCache();
    }
    view.buildDrawingCache();
    Bitmap cacheBitmap = view.getDrawingCache();
    if (cacheBitmap == null) {
        XPrintUtils.e( "failed getViewBitmap(" + view + ") -->"+
                    new RuntimeException());
        return null;
    }
    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);
    // Restore the view
    view.destroyDrawingCache();
    view.setWillNotCacheDrawing(willNotCache);
    view.setDrawingCacheBackgroundColor(color);
    return bitmap;
}
 
Example 6
Source Project: AndroidUtilCode   File: ImageUtils.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * View to bitmap.
 *
 * @param view The view.
 * @return bitmap
 */
public static Bitmap view2Bitmap(final View view) {
    if (view == null) return null;
    boolean drawingCacheEnabled = view.isDrawingCacheEnabled();
    boolean willNotCacheDrawing = view.willNotCacheDrawing();
    view.setDrawingCacheEnabled(true);
    view.setWillNotCacheDrawing(false);
    Bitmap drawingCache = view.getDrawingCache();
    Bitmap bitmap;
    if (null == drawingCache) {
        view.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
                View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
        view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
        view.buildDrawingCache();
        drawingCache = view.getDrawingCache();
        if (drawingCache != null) {
            bitmap = Bitmap.createBitmap(drawingCache);
        } else {
            bitmap = Bitmap.createBitmap(view.getMeasuredWidth(), view.getMeasuredHeight(), Bitmap.Config.ARGB_8888);
            Canvas canvas = new Canvas(bitmap);
            view.draw(canvas);
        }
    } else {
        bitmap = Bitmap.createBitmap(drawingCache);
    }
    view.destroyDrawingCache();
    view.setWillNotCacheDrawing(willNotCacheDrawing);
    view.setDrawingCacheEnabled(drawingCacheEnabled);
    return bitmap;
}
 
Example 7
Source Project: AndroidUtilCode   File: ScreenUtils.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Return the bitmap of screen.
 *
 * @param activity          The activity.
 * @param isDeleteStatusBar True to delete status bar, false otherwise.
 * @return the bitmap of screen
 */
public static Bitmap screenShot(@NonNull final Activity activity, boolean isDeleteStatusBar) {
    View decorView = activity.getWindow().getDecorView();
    boolean drawingCacheEnabled = decorView.isDrawingCacheEnabled();
    boolean willNotCacheDrawing = decorView.willNotCacheDrawing();
    decorView.setDrawingCacheEnabled(true);
    decorView.setWillNotCacheDrawing(false);
    Bitmap bmp = decorView.getDrawingCache();
    if (bmp == null) {
        decorView.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
                View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
        decorView.layout(0, 0, decorView.getMeasuredWidth(), decorView.getMeasuredHeight());
        decorView.buildDrawingCache();
        bmp = Bitmap.createBitmap(decorView.getDrawingCache());
    }
    if (bmp == null) return null;
    DisplayMetrics dm = new DisplayMetrics();
    activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
    Bitmap ret;
    if (isDeleteStatusBar) {
        Resources resources = activity.getResources();
        int resourceId = resources.getIdentifier("status_bar_height", "dimen", "android");
        int statusBarHeight = resources.getDimensionPixelSize(resourceId);
        ret = Bitmap.createBitmap(
                bmp,
                0,
                statusBarHeight,
                dm.widthPixels,
                dm.heightPixels - statusBarHeight
        );
    } else {
        ret = Bitmap.createBitmap(bmp, 0, 0, dm.widthPixels, dm.heightPixels);
    }
    decorView.destroyDrawingCache();
    decorView.setWillNotCacheDrawing(willNotCacheDrawing);
    decorView.setDrawingCacheEnabled(drawingCacheEnabled);
    return ret;
}
 
Example 8
/**
 * Draw the view into a bitmap.
 */
private Bitmap getViewBitmap(View v) {
    v.clearFocus();
    v.setPressed(false);

    boolean willNotCache = v.willNotCacheDrawing();
    v.setWillNotCacheDrawing(false);

    // Reset the drawing cache background color to fully transparent
    // for the duration of this operation
    int color = v.getDrawingCacheBackgroundColor();
    v.setDrawingCacheBackgroundColor(0);

    if (color != 0) {
        v.destroyDrawingCache();
    }
    v.buildDrawingCache();
    Bitmap cacheBitmap = v.getDrawingCache();
    if (cacheBitmap == null) {
        Log.e(TAG, "failed getViewBitmap(" + v + ")", new RuntimeException());
        return null;
    }

    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);

    // Restore the view
    v.destroyDrawingCache();
    v.setWillNotCacheDrawing(willNotCache);
    v.setDrawingCacheBackgroundColor(color);

    return bitmap;
}
 
Example 9
/**
 * Draw the view into a bitmap.
 */
private Bitmap getViewBitmap(View v) {
    v.clearFocus();
    v.setPressed(false);

    boolean willNotCache = v.willNotCacheDrawing();
    v.setWillNotCacheDrawing(false);

    // Reset the drawing cache background color to fully transparent
    // for the duration of this operation
    int color = v.getDrawingCacheBackgroundColor();
    v.setDrawingCacheBackgroundColor(0);

    if (color != 0) {
        v.destroyDrawingCache();
    }
    v.buildDrawingCache();
    Bitmap cacheBitmap = v.getDrawingCache();
    if (cacheBitmap == null) {
        Log.e(TAG, "failed getViewBitmap(" + v + ")", new RuntimeException());
        return null;
    }

    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);

    // Restore the view
    v.destroyDrawingCache();
    v.setWillNotCacheDrawing(willNotCache);
    v.setDrawingCacheBackgroundColor(color);

    return bitmap;
}
 
Example 10
/**
 * Draw the view into a bitmap.
 */
private Bitmap getViewBitmap(View v) {
    v.clearFocus();
    v.setPressed(false);

    boolean willNotCache = v.willNotCacheDrawing();
    v.setWillNotCacheDrawing(false);

    // Reset the drawing cache background color to fully transparent
    // for the duration of this operation
    int color = v.getDrawingCacheBackgroundColor();
    v.setDrawingCacheBackgroundColor(Color.TRANSPARENT);

    if (color != 0) {
        v.destroyDrawingCache();
    }
    v.buildDrawingCache();
    Bitmap cacheBitmap = v.getDrawingCache();
    if (cacheBitmap == null) {
        android.util.Log.e(TAG, "failed getViewBitmap(" + JoH.backTrace() + ")", new RuntimeException());

        v.destroyDrawingCache(); // duplicate of below, flow could be reordered better
        v.setWillNotCacheDrawing(willNotCache);
        v.setDrawingCacheBackgroundColor(color);
        return null;
    }

    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);

    // Restore the view
    v.destroyDrawingCache();
    v.setWillNotCacheDrawing(willNotCache);
    v.setDrawingCacheBackgroundColor(color);

    return bitmap;
}
 
Example 11
/**
 * Draw the view into a bitmap.
 */
protected Bitmap getViewBitmap(View v) {
    v.clearFocus();
    v.setPressed(false);

    boolean willNotCache = v.willNotCacheDrawing();
    v.setWillNotCacheDrawing(false);

    // Reset the drawing cache background color to fully transparent
    // for the duration of this operation
    int color = v.getDrawingCacheBackgroundColor();
    v.setDrawingCacheBackgroundColor(Color.TRANSPARENT);

    if (color != 0) {
        v.destroyDrawingCache();
    }
    v.buildDrawingCache();
    Bitmap cacheBitmap = v.getDrawingCache();
    if (cacheBitmap == null) {
        android.util.Log.e(TAG, "failed getViewBitmap(" + JoH.backTrace() + ")", new RuntimeException());

        v.destroyDrawingCache(); // duplicate of below, flow could be reordered better
        v.setWillNotCacheDrawing(willNotCache);
        v.setDrawingCacheBackgroundColor(color);
        return null;
    }

    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);

    // Restore the view
    v.destroyDrawingCache();
    v.setWillNotCacheDrawing(willNotCache);
    v.setDrawingCacheBackgroundColor(color);

    return bitmap;
}
 
Example 12
Source Project: LLApp   File: FileOperateUtils.java    License: Apache License 2.0 5 votes vote down vote up
public static Bitmap getViewBitmap(View v) {
    v.clearFocus();
    v.setPressed(false);

    boolean willNotCache = v.willNotCacheDrawing();
    v.setWillNotCacheDrawing(false);

    // Reset the drawing cache background color to fully transparent
    // for the duration of this operation
    int color = v.getDrawingCacheBackgroundColor();
    v.setDrawingCacheBackgroundColor(0);

    if (color != 0) {
        v.destroyDrawingCache();
    }
    v.buildDrawingCache();
    Bitmap cacheBitmap = v.getDrawingCache();
    if (cacheBitmap == null) {
        Log.e("TTTTTTTTActivity", "failed getViewBitmap(" + v + ")", new RuntimeException());
        return null;
    }

    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);

    // Restore the view
    v.destroyDrawingCache();
    v.setWillNotCacheDrawing(willNotCache);
    v.setDrawingCacheBackgroundColor(color);

    return bitmap;
}
 
Example 13
/**
 * 把一个View的对象转换成bitmap
 *
 * @param view View
 * @return Bitmap
 */
public static Bitmap getBitmapFromView2(View view) {

    view.clearFocus();
    view.setPressed(false);

    // 能画缓存就返回false
    boolean willNotCache = view.willNotCacheDrawing();
    view.setWillNotCacheDrawing(false);
    int color = view.getDrawingCacheBackgroundColor();
    view.setDrawingCacheBackgroundColor(0);
    if (color != 0) {
        view.destroyDrawingCache();
    }
    view.buildDrawingCache();
    Bitmap cacheBitmap = view.getDrawingCache();
    if (cacheBitmap == null) {
        if (DEBUG) {
            Logger.e("failed getViewBitmap(" + view + ")",
                    new RuntimeException());
        }
        return null;
    }
    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);
    // Restore the view
    view.destroyDrawingCache();
    view.setWillNotCacheDrawing(willNotCache);
    view.setDrawingCacheBackgroundColor(color);
    return bitmap;
}
 
Example 14
/**
 * Draw the view into a bitmap.
 */
private Bitmap getViewBitmap(View v) {
    v.clearFocus();
    v.setPressed(false);

    boolean willNotCache = v.willNotCacheDrawing();
    v.setWillNotCacheDrawing(false);

    // Reset the drawing cache background color to fully transparent
    // for the duration of this operation
    int color = v.getDrawingCacheBackgroundColor();
    v.setDrawingCacheBackgroundColor(0);

    if (color != 0) {
        v.destroyDrawingCache();
    }
    v.buildDrawingCache();
    Bitmap cacheBitmap = v.getDrawingCache();
    if (cacheBitmap == null) {
        Log.e(TAG, "failed getViewBitmap(" + v + ")", new RuntimeException());
        return null;
    }

    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);

    // Restore the view
    v.destroyDrawingCache();
    v.setWillNotCacheDrawing(willNotCache);
    v.setDrawingCacheBackgroundColor(color);

    return bitmap;
}
 
Example 15
Source Project: zone-sdk   File: ViewShot.java    License: MIT License 5 votes vote down vote up
/**
 * @param view
 * @return
 * @deprecated use {@link #getCacheBitmap(View,Bitmap.Config)}
 * <br>感觉这个不好  会清除一些状态</br>
 * 仅仅为了得到的位图是RGB 565吧
 * 但是 结果来看 大部分还是RGB8888 要和  View.mUse32BitDrawingCache相关
 */
public static Bitmap getCacheBitmap_ConifgByWindow(View view) {
    // 将一个View转化成一张图片
    view.clearFocus(); // 清除视图焦点
    view.setPressed(false);// 将视图设为不可点击

    boolean willNotCache = view.willNotCacheDrawing(); // 返回视图是否可以保存他的画图缓存
    view.setWillNotCacheDrawing(false);

    // Reset the drawing cache background color to fully transparent
    // for the duration of this operation //将视图在此操作时置为透明
    int color = view.getDrawingCacheBackgroundColor(); // 获得绘制缓存位图的背景颜色
    view.setDrawingCacheBackgroundColor(0); // 设置绘图背景颜色
    if (color != 0) { // 如果获得的背景不是黑色的则释放以前的绘图缓存
        view.destroyDrawingCache(); // 释放绘图资源所使用的缓存
    }
    view.buildDrawingCache(); // 重新创建绘图缓存,此时的背景色是黑色
    Bitmap cacheBitmap = view.getDrawingCache(); // 将绘图缓存得到的,注意这里得到的只是一个图像的引用
    if (cacheBitmap == null)
        return failLog(view);
    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap); // 将位图实例化
    // Restore the view //恢复视图
    view.destroyDrawingCache();// 释放位图内存
    view.setWillNotCacheDrawing(willNotCache);// 返回以前缓存设置
    view.setDrawingCacheBackgroundColor(color);// 返回以前的缓存颜色设置
    return bitmap;
}
 
Example 16
/**
 * Draw the view into a bitmap.
 */
private Bitmap getViewBitmap(View v) {
    v.clearFocus();
    v.setPressed(false);

    boolean willNotCache = v.willNotCacheDrawing();
    v.setWillNotCacheDrawing(false);

    // Reset the drawing cache background color to fully transparent
    // for the duration of this operation
    int color = v.getDrawingCacheBackgroundColor();
    v.setDrawingCacheBackgroundColor(Color.TRANSPARENT);

    if (color != 0) {
        v.destroyDrawingCache();
    }
    v.buildDrawingCache();
    Bitmap cacheBitmap = v.getDrawingCache();
    if (cacheBitmap == null) {
        Log.e(TAG, "failed getViewBitmap(" + v + ")", new RuntimeException());
        return null;
    }

    Bitmap bitmap = Bitmap.createBitmap(cacheBitmap);

    // Restore the view
    v.destroyDrawingCache();
    v.setWillNotCacheDrawing(willNotCache);
    v.setDrawingCacheBackgroundColor(color);

    return bitmap;
}
 
Example 17
Source Project: a   File: ConvertUtils.java    License: GNU General Public License v3.0 4 votes vote down vote up
/**
 * 把view转化为bitmap(截图)
 * 参见:http://www.cnblogs.com/lee0oo0/p/3355468.html
 */
public static Bitmap toBitmap(View view) {
    int width = view.getWidth();
    int height = view.getHeight();
    if (view instanceof ListView) {
        height = 0;
        // 获取listView实际高度
        ListView listView = (ListView) view;
        for (int i = 0; i < listView.getChildCount(); i++) {
            height += listView.getChildAt(i).getHeight();
        }
    } else if (view instanceof ScrollView) {
        height = 0;
        // 获取scrollView实际高度
        ScrollView scrollView = (ScrollView) view;
        for (int i = 0; i < scrollView.getChildCount(); i++) {
            height += scrollView.getChildAt(i).getHeight();
        }
    }
    view.setDrawingCacheEnabled(true);
    view.clearFocus();
    view.setPressed(false);
    boolean willNotCache = view.willNotCacheDrawing();
    view.setWillNotCacheDrawing(false);
    // Reset the drawing cache background color to fully transparent for the duration of this operation
    int color = view.getDrawingCacheBackgroundColor();
    view.setDrawingCacheBackgroundColor(Color.WHITE);//截图去黑色背景(透明像素)
    if (color != Color.WHITE) {
        view.destroyDrawingCache();
    }
    view.buildDrawingCache();
    Bitmap cacheBitmap = view.getDrawingCache();
    if (cacheBitmap == null) {
        return null;
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    canvas.drawBitmap(cacheBitmap, 0, 0, null);
    canvas.save();
    canvas.restore();
    if (!bitmap.isRecycled()) {
        bitmap.recycle();
    }
    // Restore the view
    view.destroyDrawingCache();
    view.setWillNotCacheDrawing(willNotCache);
    view.setDrawingCacheBackgroundColor(color);
    return bitmap;
}
 
Example 18
Source Project: FilePicker   File: ConvertUtils.java    License: MIT License 4 votes vote down vote up
/**
 * 把view转化为bitmap(截图)
 * 参见:http://www.cnblogs.com/lee0oo0/p/3355468.html
 */
public static Bitmap toBitmap(View view) {
    int width = view.getWidth();
    int height = view.getHeight();
    if (view instanceof ListView) {
        height = 0;
        // 获取listView实际高度
        ListView listView = (ListView) view;
        for (int i = 0; i < listView.getChildCount(); i++) {
            height += listView.getChildAt(i).getHeight();
        }
    } else if (view instanceof ScrollView) {
        height = 0;
        // 获取scrollView实际高度
        ScrollView scrollView = (ScrollView) view;
        for (int i = 0; i < scrollView.getChildCount(); i++) {
            height += scrollView.getChildAt(i).getHeight();
        }
    }
    view.setDrawingCacheEnabled(true);
    view.clearFocus();
    view.setPressed(false);
    boolean willNotCache = view.willNotCacheDrawing();
    view.setWillNotCacheDrawing(false);
    // Reset the drawing cache background color to fully transparent for the duration of this operation
    int color = view.getDrawingCacheBackgroundColor();
    view.setDrawingCacheBackgroundColor(Color.WHITE);//截图去黑色背景(透明像素)
    if (color != Color.WHITE) {
        view.destroyDrawingCache();
    }
    view.buildDrawingCache();
    Bitmap cacheBitmap = view.getDrawingCache();
    if (cacheBitmap == null) {
        return null;
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    canvas.drawBitmap(cacheBitmap, 0, 0, null);
    canvas.save(Canvas.ALL_SAVE_FLAG);
    canvas.restore();
    if (!bitmap.isRecycled()) {
        LogUtils.verbose("recycle bitmap: " + bitmap.toString());
        bitmap.recycle();
    }
    // Restore the view
    view.destroyDrawingCache();
    view.setWillNotCacheDrawing(willNotCache);
    view.setDrawingCacheBackgroundColor(color);
    return bitmap;
}
 
Example 19
Source Project: AndroidPicker   File: ConvertUtils.java    License: MIT License 4 votes vote down vote up
/**
 * 把view转化为bitmap(截图)
 * 参见:http://www.cnblogs.com/lee0oo0/p/3355468.html
 */
public static Bitmap toBitmap(View view) {
    int width = view.getWidth();
    int height = view.getHeight();
    if (view instanceof ListView) {
        height = 0;
        // 获取listView实际高度
        ListView listView = (ListView) view;
        for (int i = 0; i < listView.getChildCount(); i++) {
            height += listView.getChildAt(i).getHeight();
        }
    } else if (view instanceof ScrollView) {
        height = 0;
        // 获取scrollView实际高度
        ScrollView scrollView = (ScrollView) view;
        for (int i = 0; i < scrollView.getChildCount(); i++) {
            height += scrollView.getChildAt(i).getHeight();
        }
    }
    view.setDrawingCacheEnabled(true);
    view.clearFocus();
    view.setPressed(false);
    boolean willNotCache = view.willNotCacheDrawing();
    view.setWillNotCacheDrawing(false);
    // Reset the drawing cache background color to fully transparent for the duration of this operation
    int color = view.getDrawingCacheBackgroundColor();
    view.setDrawingCacheBackgroundColor(Color.WHITE);//截图去黑色背景(透明像素)
    if (color != Color.WHITE) {
        view.destroyDrawingCache();
    }
    view.buildDrawingCache();
    Bitmap cacheBitmap = view.getDrawingCache();
    if (cacheBitmap == null) {
        return null;
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    canvas.drawBitmap(cacheBitmap, 0, 0, null);
    canvas.save();
    canvas.restore();
    if (!bitmap.isRecycled()) {
        LogUtils.verbose("recycle bitmap: " + bitmap.toString());
        bitmap.recycle();
    }
    // Restore the view
    view.destroyDrawingCache();
    view.setWillNotCacheDrawing(willNotCache);
    view.setDrawingCacheBackgroundColor(color);
    return bitmap;
}
 
Example 20
/**
 * 把view转化为bitmap(截图)
 * 参见:http://www.cnblogs.com/lee0oo0/p/3355468.html
 */
public static Bitmap toBitmap(View view) {
    int width = view.getWidth();
    int height = view.getHeight();
    if (view instanceof ListView) {
        height = 0;
        // 获取listView实际高度
        ListView listView = (ListView) view;
        for (int i = 0; i < listView.getChildCount(); i++) {
            height += listView.getChildAt(i).getHeight();
        }
    } else if (view instanceof ScrollView) {
        height = 0;
        // 获取scrollView实际高度
        ScrollView scrollView = (ScrollView) view;
        for (int i = 0; i < scrollView.getChildCount(); i++) {
            height += scrollView.getChildAt(i).getHeight();
        }
    }
    view.setDrawingCacheEnabled(true);
    view.clearFocus();
    view.setPressed(false);
    boolean willNotCache = view.willNotCacheDrawing();
    view.setWillNotCacheDrawing(false);
    // Reset the drawing cache background color to fully transparent for the duration of this operation
    int color = view.getDrawingCacheBackgroundColor();
    view.setDrawingCacheBackgroundColor(Color.WHITE);//截图去黑色背景(透明像素)
    if (color != Color.WHITE) {
        view.destroyDrawingCache();
    }
    view.buildDrawingCache();
    Bitmap cacheBitmap = view.getDrawingCache();
    if (cacheBitmap == null) {
        return null;
    }
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    canvas.drawBitmap(cacheBitmap, 0, 0, null);
    canvas.save();
    canvas.restore();
    if (!bitmap.isRecycled()) {
        bitmap.recycle();
    }
    // Restore the view
    view.destroyDrawingCache();
    view.setWillNotCacheDrawing(willNotCache);
    view.setDrawingCacheBackgroundColor(color);
    return bitmap;
}