Android 设置用户头像 -》拍照/相册选择+裁剪 实现

 

 

 核心代码：

 

 

private static final int REQUEST_IMAGE_CAPTURE = 1; //拍照

 

private static final int REQUEST_IAMGE_SYSTEM = 2; //相册

private static final int PHOTO_RESULT = 3;         //裁剪后返回结果

 

onCreate() 函数中：

 

ImageButton camera = (ImageButton)findViewById(R.id.image_camera);

camera.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

new AlertDialog.Builder(RegisterSecondActivity.this).setItems(R.array.take_photo, new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

switch (which) {

case 0:

takePhoto();

break;

case 1:

getPictureFromSystem();

break;

}

}

}).show();

}

});

}

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

if (resultCode == RESULT_OK) {

if (requestCode == REQUEST_IMAGE_CAPTURE) {

File picture = new File(Environment.getExternalStorageDirectory() + "/temp.jpg");

startPhotoZoom(Uri.fromFile(picture));

}

if (requestCode == REQUEST_IAMGE_SYSTEM) {

startPhotoZoom(data.getData());

}

if (requestCode == PHOTO_RESULT) {

if (data != null) {

setPicToView(data);

}

}

}

super.onActivityResult(requestCode, resultCode, data);

}

//拍照获得图片

public void takePhoto() {

Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));

if (takePictureIntent.resolveActivity(getPackageManager()) != null) {

startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);

}

}

//从相册获得图片

public void getPictureFromSystem() {

Intent intent = new Intent(Intent.ACTION_PICK, null);

intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_UNSPECIFIED);

startActivityForResult(intent, REQUEST_IAMGE_SYSTEM);

}

public void startPhotoZoom(Uri uri) {

Intent intent = new Intent("com.android.camera.action.CROP");

intent.setDataAndType(uri, IMAGE_UNSPECIFIED);

intent.putExtra("crop", "true");

//裁剪的宽高比

intent.putExtra("aspectX", 1);

intent.putExtra("aspectY", 1);

intent.putExtra("return-data", true);

startActivityForResult(intent, PHOTO_RESULT);

}

public void setPicToView(Intent data) {

ImageButton camera = (ImageButton)findViewById(R.id.image_camera);

Bundle extras = data.getExtras();

if (extras != null) {

Bitmap photo = extras.getParcelable("data");

camera.setImageBitmap(photo);

}

}

 

参考：

http://www.cnblogs.com/linjiqin/archive/2011/12/28/2304970.html

http://blog.csdn.net/lcore/article/details/8926336 

http://blog.csdn.net/reality_jie_blog/article/details/17839591