注:仅适用于root phone

编程方式:adb shell /system/bin/screencap -p /sdcard/img.png

Process sh = Runtime.getRuntime().exec("su", null,null);
OutputStream os = sh.getOutputStream();
os.write(("/system/bin/screencap -p " + "/sdcard/img.png").getBytes("ASCII"));
os.flush();
os.close();
sh.waitFor();    

然后将img.png读取为位图，并按照您的意愿使用。

科特林

    private fun screenShot() {
          try {
            val mPath: String = this.getExternalFilesDir(null).getAbsolutePath()
              .toString() + "/temp" + ".png" 
            // create bitmap screenshot
            val v1: View = getWindow().getDecorView().getRootView()
            v1.isDrawingCacheEnabled = true
            val bitmap = Bitmap.createBitmap(v1.drawingCache)
            v1.isDrawingCacheEnabled = false
            val imageFile = File(mPath)
            val outputStream = FileOutputStream(imageFile)
            val quality = 100
            bitmap.compress(Bitmap.CompressFormat.PNG, quality, outputStream)
            outputStream.flush()
            outputStream.close()
        
            //or you can share to test the method fast
            val uriPath =
              FileProvider.getUriForFile(this, getPackageName() + ".sharing.provider", imageFile)
            val intent = Intent(Intent.ACTION_SEND)
            intent.type = "image/*"
            intent.clipData = ClipData.newRawUri("", uriPath)
            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION or Intent.FLAG_GRANT_WRITE_URI_PERMISSION)
            intent.putExtra(Intent.EXTRA_STREAM, uriPath)
            startActivity(Intent.createChooser(intent, "Sharing to..."))
          } catch (e: Throwable) {
            e.printStackTrace()
          }
        }

Java

  private void screenShot() {
    try {
      String mPath = this.getExternalFilesDir(null).getAbsolutePath().toString() + "/temp" + ".png";
      // create bitmap screenshot
      View v1 = getWindow().getDecorView().getRootView();
      v1.setDrawingCacheEnabled(true);
      Bitmap bitmap = Bitmap.createBitmap(v1.getDrawingCache());
      v1.setDrawingCacheEnabled(false);

      File imageFile = new File(mPath);
      FileOutputStream outputStream = new FileOutputStream(imageFile);
      int quality = 100;
      bitmap.compress(Bitmap.CompressFormat.PNG, quality, outputStream);
      outputStream.flush();
      outputStream.close();

      //or you can share to test the method fast

      Uri uriPath = FileProvider.getUriForFile(this, getPackageName() + ".sharing.provider", imageFile);
      Intent intent = new Intent(Intent.ACTION_SEND);
      intent.setType("image/*");
      intent.setClipData(ClipData.newRawUri("", uriPath));
      intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
      intent.putExtra(Intent.EXTRA_STREAM, uriPath);
      startActivity(Intent.createChooser(intent, "Sharing to..."));

    } catch (Throwable e) {
      e.printStackTrace();
    }
  }

我已经创建了一个简单的库，从一个视图截图，要么给你一个位图对象，要么直接保存到任何你想要的路径

https://github.com/abdallahalaraby/Blink

这个方法不需要root权限，也不需要大量编码。

在adb shell上使用以下命令可以截屏。

input keyevent 120

这个命令不需要任何root权限，所以你也可以从android应用程序的java代码执行。

Process process;
process = Runtime.getRuntime().exec("input keyevent 120");

更多关于android中的keyevent代码，请参阅http://developer.android.com/reference/android/view/KeyEvent.html

这里我们用了。KEYCODE_SYSRQ，它的值是120，用于系统请求/打印屏幕键。

如CJBS所说，输出的图片将保存在/sdcard/Pictures/Screenshots

注:仅适用于root phone

编程方式:adb shell /system/bin/screencap -p /sdcard/img.png

Process sh = Runtime.getRuntime().exec("su", null,null);
OutputStream os = sh.getOutputStream();
os.write(("/system/bin/screencap -p " + "/sdcard/img.png").getBytes("ASCII"));
os.flush();
os.close();
sh.waitFor();    

然后将img.png读取为位图，并按照您的意愿使用。

仅限系统应用!

Process process;
process = Runtime.getRuntime().exec("screencap -p " + outputPath);
process.waitFor();

注意:系统应用不需要执行“su”命令执行该命令。