我正在尝试在android中构建一个对话框,但在调用该方法后它不会出现。
这就是我声明方法的方法:
public Dialog onCreateDialog() {
// Use the Builder class for convenient dialog construction
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setMessage("testing")
.setPositiveButton("COPY TO", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// do something
}
})
.setNegativeButton("MOVE TO", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//do something
}
});
// Create the AlertDialog object and return it
return builder.create();
}
这就是我称之为方法的方式:
for (int i = 0; i < lvMain.getChildCount(); i++) {
LinearLayout itemLayout = (LinearLayout) lvMain.getChildAt(i);
final CheckBox cb = (CheckBox) itemLayout.findViewById(R.id.cbBox);
cb.setVisibility(View.VISIBLE);
cb.setChecked(true);
onCreateDialog();
}
知道为什么它不起作用?
答案 0 :(得分:1)
我想你忘了 .show();
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setMessage("testing")
.setPositiveButton("COPY TO", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// do something
}
})
.setNegativeButton("MOVE TO", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//do something
}
}).show();
}