我已完成使用表面 View 录制视频。现在我想知道“如何在使用表面 View 录制视频时拍照(快照)”？？谁能帮帮我。我需要在我的相机按钮中添加什么才能拍照？？
public class ActiveCam extends Activity implements SurfaceHolder.Callback
{
boolean recording = false;
MediaRecorder mediaRecorder;
SurfaceHolder surfaceHolder;
Button myStart;
Button myStop;
Button mycam;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
recording = false;
mediaRecorder = new MediaRecorder();
initMediaRecorder();
setContentView(R.layout.camact); //This is my XML file
Button b3=(Button)findViewById(R.id.button3);
SurfaceView myVideoView = (SurfaceView)findViewById(R.id.preview);
surfaceHolder = myVideoView.getHolder();
surfaceHolder.addCallback(this);
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
myStart = (Button)findViewById(R.id.button1);
myStart.setOnClickListener(myButtonOnClickListener);
myStop = (Button)findViewById(R.id.button2);
myStop.setOnClickListener(myButtonOnClickListener1);
mycam = (Button)findViewById(R.id.button3);
mycam.setOnClickListener(myButtonOnClickListener3);
}
private Button.OnClickListener myButtonOnClickListener1 = new Button.OnClickListener()
{
@Override
public void onClick(View arg0)
{
// TODO Auto-generated method stub
mediaRecorder.stop();
mediaRecorder.release();
mediaRecorder = null;
//finish();
}
};
Camera.PictureCallback mCall = new Camera.PictureCallback()
{
@Override
public void onPictureTaken(byte[] data, Camera camera)
{
//decode the data obtained by the camera into a Bitmap
bmp = BitmapFactory.decodeByteArray(data, 0, data.length);
//set the iv_image
Toast.makeText(ActiveCam.this,"cap", Toast.LENGTH_LONG).show();
//iv_image.setImageBitmap(bmp);
}
};
private Button.OnClickListener myButtonOnClickListener3 = new Button.OnClickListener()
{
@Override
public void onClick(View arg0)
{
//I need to take picture after pressing this button...What I needs to add here???
}
};
private Button.OnClickListener myButtonOnClickListener = new Button.OnClickListener()
{
@Override
public void onClick(View arg0)
{
mediaRecorder.start();
recording = true;
myStop.setText("STOP");
}
};
@Override
public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3)
{
// TODO Auto-generated method stub
}
@Override
public void surfaceCreated(SurfaceHolder arg0)
{
// TODO Auto-generated method stub
prepareMediaRecorder();
}
@Override
public void surfaceDestroyed(SurfaceHolder arg0)
{
// TODO Auto-generated method stub
}
private void initMediaRecorder()
{
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
CamcorderProfile camcorderProfile_HQ = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);
mediaRecorder.setProfile(camcorderProfile_HQ);
mediaRecorder.setOutputFile("/sdcard/your.mp4");
//mediaRecorder.setMaxFileSize(..set size..);
}
private void prepareMediaRecorder()
{
mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface());
try
{
mediaRecorder.prepare();
}
catch (IllegalStateException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
这是我的 XML 文件
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="Start" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginRight="16dp"
android:text="Pause" />
<SurfaceView
android:id="@+id/preview"
android:layout_width="500px"
android:layout_height="500px"
android:layout_alignLeft="@+id/textView1"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_marginBottom="34dp" />
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/spinner1"
android:layout_marginLeft="20dp"
android:layout_marginTop="36dp"
android:text="Button" />
</RelativeLayout>
最佳答案
RecordingView link & link .你可以通过这个拍快照code 如果您的 xml 中有一个 videoView，那么您必须将 linearLayout 作为其父级(videoView 作为 linearLayout 的子级)，以及何时保存 linearlayout 图像，这意味着您将保存您的 videoview 图像。
试试这个并阅读我发送的用于拍摄快照的代码。
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="Start" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginRight="16dp"
android:text="Pause" />
<ImageView
android:layout_width="120dip"
android:layout_height="120dip"
android:text="Take Screenshot"
android:id="@+id/ImageView01"
android:layout_centerHorizontal="true"
/>
<LinearLayout
android:orientation="vertical"
android:layout_width="500px"
android:layout_height="500px"
android:id="@+id/LinearLayout01"
android:layout_alignLeft="@+id/textView1"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:background="#FF0000"
android:layout_marginBottom="34dp">
<SurfaceView
android:id="@+id/preview"
android:layout_width="400px"
android:layout_height="400px"
android:layout_gravity="center"
/>
</LinearLayout>
<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="@+id/spinner1"
android:layout_marginLeft="20dp"
android:layout_marginTop="36dp"
android:text="Button" />
</RelativeLayout>
希望对你有帮助
在 Button3 Listner 上添加这个
private Button.OnClickListener myButtonOnClickListener3 = new Button.OnClickListener()
{
@Override
public void onClick(View arg0)
{
//I need to take picture after pressing this button...What I needs to add here???
//View v1 = L1.getFocusedChild();
L1.setDrawingCacheEnabled(true);
Bitmap bm = L1.getDrawingCache();
BitmapDrawable bitmapDrawable = new BitmapDrawable(bm);
ImageView image = (ImageView) findViewById(R.id.ImageView01);
image.setBackgroundDrawable(bitmapDrawable);
}
};
更改 Surface 管理器的宽度和高度
<SurfaceView
android:id="@+id/preview"
android:layout_width="400px"
android:layout_height="400px"
android:layout_gravity="center"
/>
并在你的线性布局中添加android:background="#FF0000"
它将帮助您确定您的快照代码是否有效
关于java - 如何在使用表面 View 录制视频时拍照(快照)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/14229464/