我想在按钮上单击显示一个对话框.这是我的代码,但它不起作用.
AlertDialog.Builder builder = new AlertDialog.Builder(
getApplicationContext());
builder.setCancelable(true);
builder.setTitle("Title");
builder.setInverseBackgroundForced(true);
builder.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
dialog.dismiss();
}
});
builder.setNegativeButton("No",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
dialog.dismiss();
}
});
AlertDialog alert = builder.create();
alert.show();
解决方法:
试试这个,
而不是传递getApplicationContext()传递此;
AlertDialog.Builder builder = new AlertDialog.Builder(this);