Android 如何在单击图像时显示图像
我想在单击该不可见图像时显示该图像,我使用了Android 如何在单击图像时显示图像,android,onclicklistener,Android,Onclicklistener,我想在单击该不可见图像时显示该图像,我使用了setVisiblity和setAlpha的属性,但它仍然不起作用 ImageView finger_a, finger_b,finger_c, finger_d; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState)
setVisiblity
和setAlpha
的属性,但它仍然不起作用
ImageView finger_a, finger_b,finger_c, finger_d;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.layout_fingers);
finger_a = (ImageView) findViewById(R.id.id_finger_A);
finger_b = (ImageView) findViewById(R.id.id_finger_B);
finger_c = (ImageView) findViewById(R.id.id_finger_c);
finger_d = (ImageView) findViewById(R.id.id_finger_d);
finger_a.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
finger_a.setVisibility(View.VISIBLE);
}
});
将其嵌入线性布局,并在线性布局上设置onClickListener。我认为不可见视图不能用于单击。您可以先设置android:src=“@null”和android:visibility=“visible”,然后在单击图像时设置图像源。这些“
不可见”图像是否可单击?首先,图像是不可见的,我只想单击该图像时,图像应该可见。如果(arg0 instanceof ImageView&&arg0.getVisibility()==View.INVISIBLE)arg0.setvisibility(View.visibility);else Log.e(“OnClick”,“出错”);
嘿,如果该图像不可见,那么如何单击该图像:p:p