我在android中有一个相机应用程序。有一个图像视图和两个按钮。当我处于横向模式时，两个按钮将在图像视图中可用，而当我处于纵向模式时，按钮必须隐藏并且纵横比是正确的。
公共类 CustomCameraActivity 扩展 Activity 实现 SurfaceHolder.Callback {
Camera camera;
SurfaceView surfaceView;
SurfaceHolder surfaceHolder;
boolean previewing = false;
LayoutInflater controlInflater = null;
Context context;
ImageView imageView;
SensorManager sensorManager;
float[] mGravs = new float[3];
float[] mGeoMags = new float[3];
float[] mRotationM = new float[16];
float[] mInclinationM = new float[16];
float[] mOrientation = new float[3];
float[] mOldOreintation = new float[3];
String[] mAccelerometer = new String[3];
String[] mMagnetic = new String[3];
String[] mRotation = new String[16];
String[] mInclination = new String[16];
String[] mOrientationString = new String[3];
String[] mOldOreintationString = new String[3];
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.main);
context = this;
sensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
//setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
imageView = (ImageView)findViewById(R.id.imgError);
getWindow().setFormat(PixelFormat.UNKNOWN);
surfaceView = (SurfaceView)findViewById(R.id.camerapreview);
surfaceHolder = surfaceView.getHolder();
surfaceHolder.addCallback(this);
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
controlInflater = LayoutInflater.from(getBaseContext());
View viewControl = controlInflater.inflate(R.layout.custom, null);
LayoutParams layoutParamsControl = new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT);
Button btn1 = (Button)viewControl.findViewById(R.id.Button01);
Button btn2 = (Button)viewControl.findViewById(R.id.Button02);
btn1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
//Toast.makeText(context, "1111111111111111111111111", Toast.LENGTH_SHORT).show();
camera.takePicture(null, null, mPicture);
Constant.rotationValueForCamera = Constant.rotationValue;
}
});
btn2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
//Toast.makeText(context, "22222222222222222222222222", Toast.LENGTH_SHORT).show();
Log.e("0 imagePickerStatus", Constant.imagePickerStatus+"");
Constant.imagePickerStatus = 0;
Log.e("0 imagePickerStatus", Constant.imagePickerStatus+"");
finish();
}
});
this.addContentView(viewControl, layoutParamsControl);
int ot = getResources().getConfiguration().orientation;
if(Configuration.ORIENTATION_LANDSCAPE == ot)
{
imageView.setVisibility(View.GONE);
Log.e("ori1111", "land");
}
else
{
imageView.setVisibility(View.VISIBLE);
Log.e("ori111", "port");
}
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Checks the orientation of the screen
if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {
//Toast.makeText(this, "landscape", Toast.LENGTH_SHORT).show();
imageView.setVisibility(View.GONE);
Log.e("ori", "land");
} else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
//Toast.makeText(this, "portrait", Toast.LENGTH_SHORT).show();
imageView.setVisibility(View.VISIBLE);
Log.e("ori", "port");
}
}
public String getPollDeviceAttitude()
{
return Constant.rotationValueForCamera;
}
private SensorEventListener sensorEventListener = new SensorEventListener() {
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
/* Get the Sensors */
public void onSensorChanged(SensorEvent event) {
switch (event.sensor.getType()) {
case Sensor.TYPE_ACCELEROMETER:
System.arraycopy(event.values, 0, mGravs, 0, 3);
break;
case Sensor.TYPE_MAGNETIC_FIELD:
System.arraycopy(event.values, 0, mGeoMags, 0, 3);
break;
case Sensor.TYPE_ORIENTATION:
System.arraycopy(event.values, 0, mOldOreintation, 0, 3);
break;
default:
return;
}
// If mGravs and mGeoMags have values then find rotation matrix
if (mGravs != null && mGeoMags != null) {
// checks that the rotation matrix is found
boolean success = SensorManager.getRotationMatrix(mRotationM, mInclinationM, mGravs, mGeoMags);
if (success) {
/* getOrientation Values */
SensorManager.getOrientation(mRotationM, mOrientation);
for(int i=0; i<3; i++){
mAccelerometer[i] = Float.toString(mGravs[i]);
mMagnetic[i] = Float.toString(mGeoMags[i]);
mOrientationString[i] = Float.toString(mOrientation[i]);
mOldOreintationString[i] = Float.toString(mOldOreintation[i]);
}
/* Make everything text to show on device
TextView xaxisAccelerometerText = (TextView)findViewById(R.id.xaxisAccelerometer);
xaxisAccelerometerText.setText(mAccelerometer[0]);
TextView yaxisAccelerometerText = (TextView)findViewById(R.id.yaxisAccelerometer);
yaxisAccelerometerText.setText(mAccelerometer[1]);
TextView zaxisAccelerometerText = (TextView)findViewById(R.id.zaxisAccelerometer);
zaxisAccelerometerText.setText(mAccelerometer[2]);
TextView xaxisMagneticText = (TextView)findViewById(R.id.xaxisMagnetic);
xaxisMagneticText.setText(mMagnetic[0]);
TextView yaxisMagneticText = (TextView)findViewById(R.id.yaxisMagnetic);
yaxisMagneticText.setText(mMagnetic[1]);
TextView zaxisMagneticText = (TextView)findViewById(R.id.zaxisMagnetic);
zaxisMagneticText.setText(mMagnetic[2]);
TextView xaxisOrientationText = (TextView)findViewById(R.id.xaxisOrientation);
xaxisOrientationText.setText(mOrientationString[0]);
TextView yaxisOrientationText = (TextView)findViewById(R.id.yaxisOrientation);
yaxisOrientationText.setText(mOrientationString[1]);
TextView zaxisOrientationText = (TextView)findViewById(R.id.zaxisOrientation);
zaxisOrientationText.setText(mOrientationString[2]);
TextView xaxisOldOrientationText = (TextView)findViewById(R.id.xaxisOldOrientation);
xaxisOldOrientationText.setText(mOldOreintationString[0]);
TextView yaxisOldOrientationText = (TextView)findViewById(R.id.yaxisOldOrientation);
yaxisOldOrientationText.setText(mOldOreintationString[1]);
TextView zaxisOldOrientationText = (TextView)findViewById(R.id.zaxisOldOrientation);
zaxisOldOrientationText.setText(mOldOreintationString[2]);*/
Constant.rotationValue = mOrientationString[0] + " " + mOrientationString[1] + " " + mOrientationString[2];
}else{
/* Make everything text to show on device even if getRotationMatrix fails
String matrixFailed = "Rotation Matrix Failed";
TextView xaxisAccelerometerText = (TextView)findViewById(R.id.xaxisAccelerometer);
xaxisAccelerometerText.setText(mAccelerometer[0]);
TextView yaxisAccelerometerText = (TextView)findViewById(R.id.yaxisAccelerometer);
yaxisAccelerometerText.setText(mAccelerometer[1]);
TextView zaxisAccelerometerText = (TextView)findViewById(R.id.zaxisAccelerometer);
zaxisAccelerometerText.setText(mAccelerometer[2]);
TextView xaxisMagneticText = (TextView)findViewById(R.id.xaxisMagnetic);
xaxisMagneticText.setText(mMagnetic[0]);
TextView yaxisMagneticText = (TextView)findViewById(R.id.yaxisMagnetic);
yaxisMagneticText.setText(mMagnetic[1]);
TextView zaxisMagneticText = (TextView)findViewById(R.id.zaxisMagnetic);
zaxisMagneticText.setText(mMagnetic[2]);
TextView xaxisOrientationText = (TextView)findViewById(R.id.xaxisOrientation);
xaxisOrientationText.setText(matrixFailed);
TextView yaxisOrientationText = (TextView)findViewById(R.id.yaxisOrientation);
yaxisOrientationText.setText(matrixFailed);
TextView zaxisOrientationText = (TextView)findViewById(R.id.zaxisOrientation);
zaxisOrientationText.setText(matrixFailed);
TextView xaxisOldOrientationText = (TextView)findViewById(R.id.xaxisOldOrientation);
xaxisOldOrientationText.setText(mOldOreintationString[0]);
TextView yaxisOldOrientationText = (TextView)findViewById(R.id.yaxisOldOrientation);
yaxisOldOrientationText.setText(mOldOreintationString[1]);
TextView zaxisOldOrientationText = (TextView)findViewById(R.id.zaxisOldOrientation);
zaxisOldOrientationText.setText(mOldOreintationString[2]);*/
Constant.rotationValue = mOrientationString[0] + " " + mOrientationString[1] + " " + mOrientationString[2];
}
}
}
};
protected void onPause()
{
super.onPause();
sensorManager.unregisterListener(sensorEventListener);
}
@Override
public void onResume()
{
super.onResume();
sensorManager.registerListener(sensorEventListener, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);
sensorManager.registerListener(sensorEventListener, sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD), SensorManager.SENSOR_DELAY_NORMAL);
sensorManager.registerListener(sensorEventListener, sensorManager.getDefaultSensor(Sensor.TYPE_ORIENTATION), SensorManager.SENSOR_DELAY_NORMAL);
if(Constant.isCapturedOk)
{
Constant.isCapturedOk = false;
finish();
}
}
PictureCallback mPicture = new PictureCallback() {
@Override
public void onPictureTaken(byte[] data, Camera camera) {
Log.e("Camrera", "22222222222222222");
Intent intent = new Intent(context, PreviewActivity.class);
//intent.putExtra("data", data);
Constant.imageData = data;
startActivity(intent);
}
};
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
if(previewing){
camera.stopPreview();
previewing = false;
}
if (camera != null){
try {
camera.setPreviewDisplay(surfaceHolder);
camera.startPreview();
previewing = true;
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
camera = Camera.open();
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
camera.stopPreview();
camera.release();
camera = null;
previewing = false;
}
@Override
protected void onStop()
{
super.onStop();
Log.e("Tab", "Stoping");
}
@Override
public boolean onKeyDown(int keyCode,KeyEvent event)
{
if(keyCode==KeyEvent.KEYCODE_BACK)
{
return true;
}
return super.onKeyDown(keyCode, event);
}
}