繪製VectorDrawable在不同的尺寸

Question

我在應用程序中有一個簡單的VectorDrawable。它來自Android SDK和看起來像這樣：

<vector xmlns:android="http://schemas.android.com/apk/res/android" 
     android:width="24dp" 
     android:height="24dp" 
     android:viewportWidth="24.0" 
     android:viewportHeight="24.0"> 
    <path 
     android:fillColor="#FF000000" 
     android:pathData="M12,17.27L18.18,21l-1.64,-7.03L22,9.24l-7.19,-0.61L12,2 9.19,8.63 2,9.24l5.46,4.73L5.82,21z"/> 
</vector> 

我想把它畫成400×400位，使得其擴展到填充位圖。目前，當我繪製它時，它只在24x24顯示。這裏的代碼：

ImageView imageview = (ImageView) findViewById(R.id.image_view); 
    VectorDrawable drawable = (VectorDrawable) getResources().getDrawable(
      R.drawable.testvector, null); 
// drawable.mutate(); 

    int width = 400 
    int height = 400; 
    Bitmap mutableImage = Bitmap.createBitmap(
      metrics, width, height, Bitmap.Config.ARGB_8888); 
    Canvas canvas = new Canvas(mutableImage); 
    drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight()); 
    drawable.draw(canvas); 
    imageview.setImageDrawable(drawable); 

Answer 1

我只檢查VectorDrawableCompat，讓我知道它是否會爲你工作。

適用於我，只要我沒有旋轉包含VectorDrawableCompat的視圖。

ImageView view; 
... 
ViewGroup.LayoutParams layoutParams = view.getLayoutParams(); 
layoutParams.width = 400; 
layoutParams.height = 400; 
view.setLayoutParams(layoutParams); 
Drawable drawable = view.getDrawable().mutate();//Vector 
view.setImageDrawable(drawable);// <- that's a hack 
view.setDrawingCacheEnabled(true); 
Bitmap bitmap = container.getDrawingCache();