Android开发，图库获取图片路径

Android开发，图库获取图片路径Android开发从图库获取图片路径，麻烦附上源码谢谢

public class TestCameraActivity extends Activity implements OnClickListener{ private Uri mOutPutFileUri;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

Button takePiCButton = (Button) this.findViewById(R.id.button1);
takePiCButton.setOnClickListener(this);
}

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button1:
saveFullImage();
break;

default:
break;
}
}

private void saveFullImage(){
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//文件夹aaaa
String path = Environment.getExternalStorageDirectory().toString()+"/aaaa";
File path1 = new File(path);
if(!path1.exists()){
path1.mkdirs();
}
File file = new File(path1,System.currentTimeMillis()+".jpg");
mOutPutFileUri = Uri.fromFile(file);
intent.putExtra(MediaStore.EXTRA_OUTPUT, mOutPutFileUri);
startActivityForResult(intent, 1);

}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == 1){
Uri imageUri = null;
if(data != null){
if(data.hasExtra("data")){
Bitmap thunbnail = data.getParcelableExtra("data");
//处理缩略图
}
}else{
//处理mOutPutFileUri中的完整图像
}

}
}
}

private void datagridview1_cellcontentclick(object sender, datagridviewcelleventargs e) { string sql = "select teacherid;loginid as id;loginpwd as 密码;teachername as 姓名;sex as 性别;birthday as 生日 from teacher"; dataadapter = new sqldataadapter(sql,dbherper.connection); dataadapter .fill (dataset ,"teacher"); datagridview1.datasource =dataset.tables["teacher"]; }