Java 如何使按钮不可点击
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How to make a button unclickable
提问by Dan
So right now i am having trouble making the next button unclickable when it is on the last page of the activity. As of right now it goes back to the first screen. How do i make it so that it know when to grey out the button or make it unclickable when the user gets to the last screen.
所以现在我在下一个按钮位于活动的最后一页时无法点击它时遇到了麻烦。截至目前，它返回到第一个屏幕。我如何使它知道何时使按钮变灰或在用户到达最后一个屏幕时使其不可点击。
Here is my code:
这是我的代码：
public class ReadingActivity extends Activity implements OnClickListener {
private ViewFlipper viewFlipper;
Button btnNext, btnPrev;
private float lastX;
/** Called when the activity is first created */
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.reading);
viewFlipper=(ViewFlipper)findViewById(R.id.view_flipper);
btnNext=(Button)findViewById(R.id.btnNext);
btnPrev=(Button)findViewById(R.id.btnPre);
btnNext.setOnClickListener(this);
btnPrev.setOnClickListener(this);
btnNext.setEnabled(true);
}
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
switch(arg0.getId()){
case R.id.btnNext:
viewFlipper.setInAnimation(this, R.anim.in_from_right);
viewFlipper.setOutAnimation(this, R.anim.out_to_left);
viewFlipper.showNext();
break;
case R.id.btnPre:
viewFlipper.setInAnimation(this, R.anim.in_from_left);
viewFlipper.setOutAnimation(this, R.anim.out_to_right);
viewFlipper.showPrevious();
break;
}
}
}
采纳答案by JRowan
you can set the OnClickListener to null like so
您可以像这样将 OnClickListener 设置为 null
btnNext.setOnClickListener(null);
回答by Ryan Hu
I think you just want this method
我想你只是想要这个方法
button.setClickable(false);
回答by Jawad Zeb
To make a button grey and UnClickable
使按钮变灰且不可点击
put android:enabled="false"in button tag
放入android:enabled="false"按钮标签
And using code button.setEnabled(false);
并使用代码 button.setEnabled(false);
