Android截图并分享的小例子

public class ScreenShot {
	// 获取指定Activity的截屏，保存到png文件
    private static Bitmap takeScreenShot(Activity activity) {
        // View是你需要截图的View
        View view = activity.getWindow().getDecorView();
        view.setDrawingCacheEnabled(true);
        view.buildDrawingCache();
        Bitmap b1 = view.getDrawingCache();
 
        // 获取状态栏高度
        Rect frame = new Rect();
        activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
        int statusBarHeight = frame.top;
        Log.i("TAG", "" + statusBarHeight);
 
        // 获取屏幕长和高
        int width = activity.getWindowManager().getDefaultDisplay().getWidth();
        int height = activity.getWindowManager().getDefaultDisplay()
                .getHeight();
        // 去掉标题栏
        // Bitmap b = Bitmap.createBitmap(b1, 0, 25, 320, 455);
        Bitmap b = Bitmap.createBitmap(b1, 0, statusBarHeight, width, height
                - statusBarHeight);
        view.destroyDrawingCache();
        return b;
    }
 
    // 保存到sdcard
    private static void savePic(Bitmap b, String strFileName) {
 
        FileOutputStream fos = null;
        try {
            fos = new FileOutputStream(strFileName);
            if (null != fos) {
                b.compress(Bitmap.CompressFormat.PNG, 90, fos);
                fos.flush();
                fos.close();
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
 
    // 程序入口
    public static String shoot(Activity a) {
    	String strFileName = "sdcard/" + String.valueOf(System.currentTimeMillis()) + ".png";
        ScreenShot.savePic(ScreenShot.takeScreenShot(a), strFileName);
        return strFileName;
    }
}

public class ScreenShot { // 获取指定Activity的截屏，保存到png文件 private static Bitmap takeScreenShot(Activity activity) { // View是你需要截图的View View view = activity.getWindow().getDecorView(); view.setDrawingCacheEnabled(true); view.buildDrawingCache(); Bitmap b1 = view.getDrawingCache(); // 获取状态栏高度 Rect frame = new Rect(); activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame); int statusBarHeight = frame.top; Log.i("TAG", "" + statusBarHeight); // 获取屏幕长和高 int width = activity.getWindowManager().getDefaultDisplay().getWidth(); int height = activity.getWindowManager().getDefaultDisplay() .getHeight(); // 去掉标题栏 // Bitmap b = Bitmap.createBitmap(b1, 0, 25, 320, 455); Bitmap b = Bitmap.createBitmap(b1, 0, statusBarHeight, width, height - statusBarHeight); view.destroyDrawingCache(); return b; } // 保存到sdcard private static void savePic(Bitmap b, String strFileName) { FileOutputStream fos = null; try { fos = new FileOutputStream(strFileName); if (null != fos) { b.compress(Bitmap.CompressFormat.PNG, 90, fos); fos.flush(); fos.close(); } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } // 程序入口 public static String shoot(Activity a) { String strFileName = "sdcard/" + String.valueOf(System.currentTimeMillis()) + ".png"; ScreenShot.savePic(ScreenShot.takeScreenShot(a), strFileName); return strFileName; } }

public class MainActivity extends Activity {
 
	private Button btn;
	private String image;
	private Button btnShare;
 
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		btn = (Button)findViewById(R.id.btn);
		btn.setOnClickListener(new OnClickListener() {
 
			@Override
			public void onClick(View v) {
				image = ScreenShot.shoot(MainActivity.this);
			}
		});
		btnShare = (Button) findViewById(R.id.btn_share);
		btnShare.setOnClickListener(new OnClickListener() {
 
			@Override
			public void onClick(View v) {
				Intent intent  = new Intent(Intent.ACTION_SEND);
				File file = new File(image);
				intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));
				intent.setType("image/jpeg");
				Intent chooser = Intent.createChooser(intent, "Share screen shot");
				if(intent.resolveActivity(getPackageManager()) != null){
					startActivity(chooser);
				}
			}
		});
	}
}

public class MainActivity extends Activity { private Button btn; private String image; private Button btnShare; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); btn = (Button)findViewById(R.id.btn); btn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { image = ScreenShot.shoot(MainActivity.this); } }); btnShare = (Button) findViewById(R.id.btn_share); btnShare.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(Intent.ACTION_SEND); File file = new File(image); intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file)); intent.setType("image/jpeg"); Intent chooser = Intent.createChooser(intent, "Share screen shot"); if(intent.resolveActivity(getPackageManager()) != null){ startActivity(chooser); } } }); } }