Android截屏代码经验
1、添加需要截屏的界面布局
2、<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.yacheng.slidedemo.MainActivity" >
<ImageView
android:id="@+id/image"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:contentDescription="@null"
android:src="@drawable/one"
/>
<Button
android:id="@+id/nextPic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_margin="10dp"
android:background="@color/abc_search_url_text_normal"
android:text="截屏" />
</RelativeLayout>
3、主界面代码
4、/**
* 截屏功能
* @author Administrator
*
*/
public class GetFullScreemActivity extends Activity {
static ByteArrayOutputStream baos = null;
static Bitmap bitmap = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById(R.id.nextPic).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
captureScreen();
}
});
}
private void captureScreen() {
/** process screen capture on background thread */
Runnable action = new Runnable() {
@Override
public void run() {
/**
* activity's root layout id, you can change the
* android.R.id.content to your root layout id
*/
final View contentView = findViewById(android.R.id.content);
try {
bitmap = Bitmap.createBitmap(contentView.getWidth(),
contentView.getHeight(), Bitmap.Config.ARGB_4444);
// bitmap = BMapUtil.getBitmapFromViews(contentView);
contentView.draw(new Canvas(bitmap));
baos = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
savePic(bitmap,"sdcard/short.png");
}
catch (Exception e) {
e.printStackTrace();
}
finally {
try {
/** no need to close, actually do nothing */
if (null != baos)
baos.close();
if (null != bitmap && !bitmap.isRecycled()) {
// bitmap.recycle();
bitmap = null;
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
};
try {
action.run();
} catch (Exception e) {
e.printStackTrace();
}
}
/***
* 保存到sdcard
* @param Bitmap b
* @param String strFileName 保存地址
*/
private void savePic(Bitmap b, String strFileName) {
FileOutputStream fos = null;
try {
fos = new FileOutputStream(strFileName);
if (null != fos) {
boolean success= b.compress(Bitmap.CompressFormat.PNG, 90, fos);
fos.flush();
fos.close();
if(success)
Toast.makeText(GetFullScreemActivity.this, "截屏成功", Toast.LENGTH_SHORT).show();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
5、只配置文件需加入权限
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
6、点击截屏按钮后，可在文件管理器中查到截取的屏幕图片
测试成功：
