android截屏代码

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private Button m_btn;private MainActivity m_thisActv;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);              m_thisActv = this;        m_btn = (Button)findViewById(R.id.button1);        m_btn.setOnClickListener(new View.OnClickListener() {                @Overridepublic void onClick(View arg0) {// TODO Auto-generated method stubString fname = "mnt/sdcard/hello.png";View view = m_thisActv.getWindow().getDecorView();view.setDrawingCacheEnabled(true);view.buildDrawingCache();Bitmap bitmap = view.getDrawingCache();if (bitmap != null) {m_logTextString+="bitmap got!\n";m_texView.setText(m_logTextString);try{FileOutputStream out = new FileOutputStream(fname);bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);} catch(Exception e){e.printStackTrace();}} else{Log.d("myLog","bitmap == null");}}});}

记得配置权限：

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

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