本文实例为大家分享了Android设置重复文字水印背景的具体代码，供大家参考，具体内容如下
效果如图：
自定义Drawable ：
/**
* Created by Owen Chan
* On 2017-07-05.
*/
public class WaterMarkBg extends Drawable {
private Paint paint = new Paint();
private String logo = "SoYoung";
public WaterMarkBg(String logo) {
this.logo = logo;
}
@Override
public void draw(@NonNull Canvas canvas) {
int width = getBounds().right;
int height = getBounds().bottom;
canvas.drawColor(Color.parseColor("#F3F5F9"));
paint.setColor(Color.parseColor("#AEAEAE"));
paint.setAntiAlias(true);
paint.setTextSize(30);
canvas.save();
canvas.rotate(-30);
float textWidth = paint.measureText(logo);
int index = 0;
for (int positionY = height / 10; positionY <= height; positionY += height / 10) {
float fromX = -width + (index++ % 2) * textWidth;
for (float positionX = fromX; positionX < width; positionX += textWidth * 2) {
canvas.drawText(logo, positionX, positionY, paint);
}
}
canvas.restore();
}
@Override
public void setAlpha(@IntRange(from = 0, to = 255) int alpha) {
}
@Override
public void setColorFilter(@Nullable ColorFilter colorFilter) {
}
@Override
public int getOpacity() {
return PixelFormat.UNKNOWN;
}
}
代码中的设置：
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.text).setBackground(new WaterMarkBg("Owen Chan"));
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
