使用系统相机实现录像

添加权限

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

public class MainActivity extends Activity implements OnClickListener {

    private Button button;
    private Intent intent;
    private File file;

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button = (Button) findViewById(R.id.button1);
        button.setOnClickListener(MainActivity.this);

    }

    public void onClick(View v) {

        // 跳转到相机去录像
        intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
        // 找到录像的存储位置，并告诉相机
        String path = Environment.getExternalStorageDirectory()
                .getAbsolutePath();
        file = new File(path, "guo.mp4");

        // 告诉相机，存储的位置
        intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(file));
        // 告诉相机，录像的质量
        intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);

        startActivityForResult(intent, 1000);

    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 1000) {
            Toast.makeText(MainActivity.this, "录像结束", 0).show();
        }
    }
}