Android(安卓)点击回退按钮时弹出提示框
16lz
2021-12-21
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(keyCode==KeyEvent.KEYCODE_BACK&&event.getRepeatCount()==0){
AlertDialog.Builder alertbBuilder=new AlertDialog.Builder(YDZF_DemoActivity.this);
alertbBuilder.setTitle("提示").setMessage("确认退出?").setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//结束这个Activity
YDZF_DemoActivity.this.finish();
}
}).setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
}).create();
alertbBuilder.show();
}
return true;
};s
if(keyCode==KeyEvent.KEYCODE_BACK&&event.getRepeatCount()==0){
AlertDialog.Builder alertbBuilder=new AlertDialog.Builder(YDZF_DemoActivity.this);
alertbBuilder.setTitle("提示").setMessage("确认退出?").setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//结束这个Activity
YDZF_DemoActivity.this.finish();
}
}).setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
}).create();
alertbBuilder.show();
}
return true;
};s
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