选择图片——笔记

@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.photo:
Intent intent = new Intent(Intent.ACTION_PICK,null);
intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,"image/*");
startActivityForResult(intent,100);
break;
}
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(resultCode == RESULT_OK && requestCode == 100){
if(data != null){
mPhoto.setImageURI(data.getData());
}
}
}