public void onClick(View v) {
new AlertDialog.Builder(MainActivity.this)
.setTitle("This is Dialog~")//title
.setMessage("Are you sure?")//text
.setCancelable(false)//'false' is you can't cancel the Dialog;
.setPositiveButton("Ojbk", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
})
.setNegativeButton("No",null)
.setNeutralButton("don't care",null)//一般按钮，点击关闭使用
.show();
}