首先,您需要创建空位图并从中获取画布。 使用下面的代码,这
int w = WIDTH_PX, h = HEIGHT_PX;
Bitmap.Config conf = Bitmap.Config.ARGB_8888; // see other conf types
Bitmap bmp = Bitmap.createBitmap(w, h, conf); // this creates a MUTABLE bitmap
Canvas canvas = new Canvas(bmp);
现在你需要绘制您在此位图查看。 使用下面码本
LinearLayout layout = new LinearLayout(getContext());
TextView textView = new TextView(getContext());
int padding = 4;
textView.setPadding(padding, padding, padding, padding);
textView.setVisibility(View.VISIBLE);
textView.setText("Hello how are you");
layout.addView(textView);
textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 10);
layout.measure(canvas.getWidth(), canvas.getHeight());
layout.layout(0, 0, canvas.getWidth(), canvas.getHeight());
layout.draw(canvas);
现在您的视图被转换成位图(BMP)。