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要实现两张图片叠加效果 通过查找资料 发现可以用setLayerInset() 实现
package com.twy.test;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.LayerDrawable;
import android.os.Bundle;
import android.view.ViewGroup.MarginLayoutParams;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;
public class testDemo extends Activity {
private LinearLayout lay;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
lay = (LinearLayout) findViewById(R.id.linearLayout1);
firstLay();
}
private void firstLay() {
Bitmap mbitmap_c = BitmapFactory.decodeResource(getResources(),
R.drawable.cc);
Bitmap mbitmap_b = BitmapFactory.decodeResource(getResources(),
R.drawable.bb);
Bitmap mbitmap_e = BitmapFactory.decodeResource(getResources(),
R.drawable.ee);
Bitmap mbitmap_f = BitmapFactory.decodeResource(getResources(),
R.drawable.ff);
Drawable[] array = new Drawable[4];
array[0] = new BitmapDrawable(mbitmap_b);
array[1] = new BitmapDrawable(mbitmap_c);
array[2] = new BitmapDrawable(mbitmap_e);
array[3] = new BitmapDrawable(mbitmap_f);
LayerDrawable la = new LayerDrawable(array);
la.setLayerInset(0, 0, 0, 0, 0);
la.setLayerInset(1, 80, 0, 0, 0);
la.setLayerInset(2, 160, 0, 0, 0);
la.setLayerInset(3, 240, 0, 0, 0);
ImageView img = new ImageView(this);
img.setImageDrawable(la);
lay.addView(img);
}
}
本来想实现图片间两两有一部分重叠 但这种实现效果是一张图片覆盖在另一张上。
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