Android之截屏代碼

分享一個簡單的截屏代碼。

1.主Activity

1. package com.zhf.ScreenshotDemo;
3. import Android.app.Activity;
4. import android.graphics.Bitmap;
5. import android.graphics.drawable.BitmapDrawable;
6. import android.os.Bundle;
7. import android.view.Display;
8. import android.view.View;
9. import android.view.View.OnClickListener;
10. import android.widget.Button;
11. import android.widget.ImageView;
13. public class ScreenshotDemoActivity extends Activity {
14. private Button shotButton;
15. private ImageView imageView;
16. @Override
17. public void onCreate(Bundle savedInstanceState) {
18. super.onCreate(savedInstanceState);
19. setContentView(R.layout.main);
20. shotButton=(Button)findViewById(R.id.shotButton);
21. imageView=(ImageView)findViewById(R.id.imageView);
22. shotButton.setOnClickListener(new OnClickListener() {
23. @Override
24. public void onClick(View v) {
25. //Bitmap-->Drawable
26. BitmapDrawable bd=new BitmapDrawable(shot());
27. imageView.setBackgroundDrawable(bd);
28. // imageView.setImageBitmap(shot());
29. }
30. });
31. }
33. /**
34. * 截屏方法
35. * @return
36. */
37. private Bitmap shot() {
38. View view = getWindow().getDecorView();
39. Display display = this.getWindowManager().getDefaultDisplay();
40. view.layout(0, 0, display.getWidth(), display.getHeight());
41. view.setDrawingCacheEnabled(true);//允許當前窗口保存緩存信息，這樣getDrawingCache()方法才會返回一個Bitmap
42. Bitmap bmp = Bitmap.createBitmap(view.getDrawingCache());
43. return bmp;
44. }
45. }

2.布局

1. <?xml version="1.0" encoding="utf-8"?>
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3. android:layout_width="fill_parent"
4. android:layout_height="fill_parent"
5. android:orientation="vertical" >
6. <ImageView android:id="@+id/imageView"
7. android:layout_width="fill_parent"
8. android:layout_height="350dip"
9. />
11. <Button android:id="@+id/shotButton"
12. android:layout_width="fill_parent"
13. android:layout_height="wrap_content"
14. android:text="shot"/>
15. </LinearLayout>