Android在另一個位圖上繪製已調整大小的位圖

Question

我需要繪製在另一個位圖上調整大小的位圖（縮小一個位圖，然後在另一個位圖上繪製它）。

我使用的是現在的代碼是：

Resources res = ((Context)(activity)).getResources(); 
Drawable[] layers = new Drawable[2]; 
layers[0] = res.getDrawable(R.drawable.marker_report_red); 
layers[1] = new BitmapDrawable(getResizedBitmap(((BitmapDrawable)res.getDrawable(R.drawable.report_path_merge_ic)).getBitmap(),10,10)); 
LayerDrawable layerDrawable = new LayerDrawable(layers); 
Bitmap b = Bitmap.createBitmap(layers[0].getIntrinsicWidth(), layers[0].getIntrinsicHeight(), Bitmap.Config.ARGB_8888); 
layerDrawable.setBounds(0, 0, layers[0].getIntrinsicWidth(), layers[0].getIntrinsicHeight()); 
layerDrawable.draw(new Canvas(b)); 

和：

public Bitmap getResizedBitmap(Bitmap bm, int newHeight, int newWidth) { 
    int width = bm.getWidth(); 
    int height = bm.getHeight(); 
    float scaleWidth = ((float) newWidth)/width; 
    float scaleHeight = ((float) newHeight)/height; 
    // CREATE A MATRIX FOR THE MANIPULATION 
    Matrix matrix = new Matrix(); 
    // RESIZE THE BIT MAP 
    matrix.postScale(scaleWidth, scaleHeight); 

    // "RECREATE" THE NEW BITMAP 
    Bitmap resizedBitmap = Bitmap.createBitmap(bm, 0, 0, width, height, matrix, false); 
    return resizedBitmap; 
} 

但產生的圖像只顯示了被拉伸到一個基本的規模模糊的位圖。

我該怎麼做？這是第4個方法，我想......

Answer 1

我解決了問題，我完全使用不同的代碼：

Resources res = ((Context)(activity)).getResources(); 
Drawable[] layers = new Drawable[2]; 
layers[0] = res.getDrawable(R.drawable.marker_report_red); 
layers[1] = res.getDrawable(R.drawable.report_path_merge_ic); 
LayerDrawable layerDrawable = new LayerDrawable(layers); 
layerDrawable.setLayerInset(1, 15, 10, 15, 15); 
Bitmap b = Bitmap.createBitmap(layers[0].getIntrinsicWidth(), layers[0].getIntrinsicHeight(), Bitmap.Config.ARGB_8888); 
layerDrawable.setBounds(0, 0, layers[0].getIntrinsicWidth(), layers[0].getIntrinsicHeight()); 
layerDrawable.draw(new Canvas(b)); 

重點上線：

layerDrawable.setLayerInset(1, 15, 10, 15, 15); 

這條線調整第二層上的位圖的大小。