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如何在畫布上繪製我的可繪製圖像?我從資源中獲取圖像並在畫布上繪製該圖像。這是可能的,我們可以聲明多個畫布並將其全部設置爲一個? 我已經在畫布上創建了圖像,並且想要繪製可繪製的圖像?在畫布上繪製我的可繪製圖像?
private Bitmap drawtextonimage(Bitmap bitmap, String text, String caption) {
caption = caption.replace("\n", " ");
聲明帆布和油漆?
Canvas cs = new Canvas(bitmap);
Paint tPaint = new Paint();
Paint captionPaint = new Paint();
if (text.equals("Good")) {
tPaint.setColor(Color.GREEN);
} else {
tPaint.setColor(Color.RED);
}
tPaint.setStyle(Style.FILL);
tPaint.setTextSize(30);
//
captionPaint.setColor(Color.CYAN);
captionPaint.setAlpha(100);
captionPaint.setTextSize(25);
captionPaint.setTextScaleX((float) 0.7);
captionPaint.setTextAlign(Align.CENTER);
captionPaint.setTypeface(Typeface.SERIF);
captionPaint.setShadowLayer(1f, 0, 1f, Color.WHITE);
/*Canvas cs1 = new Canvas(bitmap);
cs1.drawRect(0, bitmap.getHeight(), bitmap.getWidth(), 500, tPaint);
// canvas.drawRect(33, 33, 77, 60, paint);
Paint zPaint = new Paint();
cs1.drawARGB((int) 0.5,54,54,200);*/
// cs.drawText(text, 60, 60, tPaint);
此方法得到我的可繪製圖像並在畫布上繪製,但它不工作?
Resources res = getResources();
Bitmap bitmapx = BitmapFactory.decodeResource(res, R.drawable.overlay_good_full);
Bitmap bitmapxx = BitmapFactory.decodeResource(res, R.drawable.overlay_bad_full);
if(text.equals("Good"))
{
cs.drawBitmap(bitmapx, 0, 0, new Paint());
//cs.drawBitmap(bitmapx, 0, 0, tPaint);
}
else
{
// cs.drawBitmap(bitmapxx, 0, 0, tPaint);
}
cs.drawText(caption, (bitmap.getWidth()/2), bitmap.getHeight()
, captionPaint);
// canvas.drawBitmap(image, 0, 0, null);
// Log.i("Caption", caption);
return bitmap;
}
您是不是指工作不正常?你有沒有得到任何異常?如果它不起作用,你需要檢查你的text.equals(「好」)條件是否有效。 – ridoy
TRY cs.setBitMap(bitmapx);相反... –
不,它沒有顯示可繪製的圖像。 –