从Gallery中选择图片

public class MainActivity extends Activity {

	private ImageView iv;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		iv = (ImageView)findViewById(R.id.iv);
	}

	public void selectPic(View view){
		Intent intent = new Intent();
		intent.setAction(Intent.ACTION_PICK);
		intent.setType("image/*");
		
		startActivityForResult(intent, 0);
	}
	
	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		super.onActivityResult(requestCode, resultCode, data);
		if(data != null){
			Uri uri = data.getData();
			iv.setImageURI(uri);
			
		}
	}
}