Android截图并分享的小例子

来源：互联网发布：数据分析属于什么职能编辑：程序博客网时间：2024/06/18 17:27

创建ScreenShot类来进行截图处理，并返回保存的文件名

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;    }}

在需要使用的Activity中调用shoot方法，并使用Intent来分享出去

public class MainActivity extends Activity {private Button btn;private String image;private Button btnShare;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);btn = (Button)findViewById(R.id.btn);btn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {image = ScreenShot.shoot(MainActivity.this);}});btnShare = (Button) findViewById(R.id.btn_share);btnShare.setOnClickListener(new OnClickListener() {@Overridepublic 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);}}});}}

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