开发笔记:关于android：getSlotFromBufferLocked的问题

package android.com.java.choosepictest;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
public class MainActivity extends Activity {
public static final int TAKE_PHOTO = 1;
public static final int CROP_PHOTO = 2;
private Button takePhoto;
private ImageView picture;
private Uri imageUri;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
takePhoto = (Button)findViewById(R.id.take_photo);
picture = (ImageView)findViewById(R.id.picture);
takePhoto.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
File outputImage = new File(Environment.getExternalStorageDirectory(),"output_image.jpg");
try{
if (outputImage.exists()){
outputImage.delete();
}
outputImage.createNewFile();
}catch (IOException e){
e.printStackTrace();
}
imageUri = Uri.fromFile(outputImage);
android.util.Log.e("YPC","uri = "+imageUri);
try {
Bitmap mBitmap = BitmapFactory.decodeStream((getContentResolver().openInputStream(imageUri)));
Log.e("YPC","bitmap = "+mBitmap);
Log.e("YPC","getContentResolver().openInputStream(imageUri) = "+getContentResolver().openInputStream(imageUri));
picture.setImageBitmap(mBitmap);
}catch (FileNotFoundException e){
e.printStackTrace();
}
Intent intent = new Intent ("android.media.action.IMAGE_CAPTURE");
intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUri);
startActivityForResult(intent,TAKE_PHOTO);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode){
case TAKE_PHOTO:
if (requestCode == RESULT_OK) {
Intent intent = new Intent ("com.android.camera.action.CROP");
intent.setDataAndType(imageUri,"image/*");
intent.putExtra("scale",true);
intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUri);
try {
Bitmap mBitmap = BitmapFactory.decodeStream((getContentResolver().openInputStream(imageUri)));
Log.e("YPC","bitmap = "+mBitmap);
Log.e("YPC","getContentResolver().openInputStream(imageUri) = "+getContentResolver().openInputStream(imageUri));
picture.setImageBitmap(mBitmap);
}catch (FileNotFoundException e){
e.printStackTrace();
}
startActivityForResult(intent,CROP_PHOTO);
}
break;
case CROP_PHOTO:
if (resultCode == RESULT_OK){
try{
Bitmap bitmap = BitmapFactory.decodeStream((getContentResolver().openInputStream(imageUri)));
picture.setImageBitmap(bitmap);
android.util.Log.e("YPC","bitmap = "+bitmap);
}catch (FileNotFoundException e){
e.printStackTrace();
}
}
break;
default:break;
}
}
}