android 拍照+从手机相册选择返回图片到imagview

简单粗暴的记录，直接上代码：

通过一个addpic（）方法就实现

备注：manifest中的application记得添加android:hardwareAccelerated="false"这个属性

源码地址：http://download.csdn.net/detail/l515518205/7388235

public class MainActivity extends Activity {

Button choose;

ImageView  image;

private Bitmap myBitmap;  

    private byte[] mContent; 

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

choose=(Button) findViewById(R.id.button1);

image=(ImageView) findViewById(R.id.imageView1);

choose.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View arg0) {

addpic();

}

});

}

//显示对话框

protected void addpic() {

new AlertDialog.Builder(this)

.setItems(new String[] { "拍照", "从手机相册选择" },

new DialogInterface.OnClickListener() { // content

@Override

public void onClick(DialogInterface dialog,

int which) {

switch (which) {

case 0: {//拍照

Intent intent = new Intent(

MediaStore.ACTION_IMAGE_CAPTURE);

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

startActivityForResult(intent, 1);

break;

}

case 1: {//从相册

Intent intent = new Intent(

Intent.ACTION_PICK,

MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

startActivityForResult(intent, 2);

break;

}

default:

break;

}

}

})

.setNegativeButton("取消",

new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog,

int which) {

dialog.dismiss();

}

}).show();

}

@Override

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

// TODO Auto-generated method stub

super.onActivityResult(requestCode, resultCode, data);

if (resultCode != Activity.RESULT_OK)

return;

switch (requestCode) {

case 1://拍照

try {  

            Bundle extras = data.getExtras();  

            myBitmap = (Bitmap) extras.get("data");  

            ByteArrayOutputStream baos = new ByteArrayOutputStream();       

            myBitmap.compress(Bitmap.CompressFormat.JPEG , 100, baos);       

            mContent=baos.toByteArray();  

        } catch (Exception e) {  

            e.printStackTrace();  

            // TODO: handle exception   

        }  

image.setImageBitmap(myBitmap);  

break;

case 2://从相册选择

   try {  

            Uri selectedImage = data.getData();  

            String[] filePathColumn = { MediaStore.Images.Media.DATA };  

            Cursor cursor = getContentResolver().query(selectedImage,  

                    filePathColumn, null, null, null);  

            cursor.moveToFirst();  

            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);  

            String picturePath = cursor.getString(columnIndex);  

            cursor.close();  

            image.setImageBitmap(BitmapFactory.decodeFile(picturePath));  

        } catch (Exception e) {  

            // TODO: handle exception   

            e.printStackTrace();  

        }  

break;

}

}

}