Java安卓摄像头
我有这个简单的摄像头应用程序,但我想知道如何添加过滤器到它。我是一名Java初学者,我按照指南操作相机。有人能帮我添加带有按钮的过滤器吗Java安卓摄像头,java,android,eclipse,Java,Android,Eclipse,我有这个简单的摄像头应用程序,但我想知道如何添加过滤器到它。我是一名Java初学者,我按照指南操作相机。有人能帮我添加带有按钮的过滤器吗 public class MainActivity extends Activity { private static String logtag = "CameraApp"; private static int TAKE_PICTURE = 1; private Uri imageUri; @Override protected void onC
public class MainActivity extends Activity {
private static String logtag = "CameraApp";
private static int TAKE_PICTURE = 1;
private Uri imageUri;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button cameraButton = (Button)findViewById(R.id.button_camera);
cameraButton.setOnClickListener(cameraListener);
}
private OnClickListener cameraListener = new OnClickListener() {
public void onClick(View v) {
takePhoto(v);
}
};
public void takePhoto(View v) {
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
File photo = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "pic.jpg");
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photo));
imageUri = Uri.fromFile(photo);
startActivityForResult(intent, TAKE_PICTURE);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch(requestCode) {
if(resultCode == Activity.RESULT_OK) {
Uri selectedImage = imageUri;
getContentResolver().notifyChange(selectedImage, null);
ImageView imageView = (ImageView)findViewById(R.id.image_view_camera);
ContentResolver cr = getContentResolver();
Bitmap bitmap;
try {
bitmap = android.provider.MediaStore.Images.Media.getBitmap(cr, selectedImage);
imageView.setImageBitmap(bitmap);
Toast.makeText(MainActivity.this, selectedImage.toString(), Toast.LENGTH_LONG).show();
} catch(Exception e) {
Toast.makeText(MainActivity.this, "failed to load", Toast.LENGTH_LONG).show();
Log.e(logtag, e.toString());
}
}
}
}
}
您可以实现如下效果:
Camera.Parameters parameters = camera.getParameters();
parameters.setColorEffect(Camera.Parameters.EFFECT_AQUA);
camera.setParameters(parameters);
文件单元:
我知道,但我如何将其集成到代码中?例如,当拍摄照片时,您可以单击按钮并应用该效果。在该按钮的onClick方法中,您可以编写如下内容:v.setColorEffect(Camera.Parameters.EFFECT_AQUA);我是在onActivityResult还是在onCreate方法中添加按钮?在onCreate方法中。按钮aquaButton=(Button)fundViewById(R.id.aqua_Button)//获取按钮,然后我将其添加到正确的位置?Camera.Parameters=Camera.getParameters();参数.setColorEffect(照相机.parameters.EFFECT_-AQUA);设置参数(参数);
Update:
Button filterbutton;
Button filterbutton = (Button)findViewById(R.id.filterbutton); }
filterbutton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
v.setColorEffect(Camera.Parameters.EFFECT_AQUA);
}