我希望在单击按钮以显示搜索栏后弹出警告对话框,以便此人可以更改1-48中的值。我已经制作了一个自定义xml,它有一个搜索栏和两个文本视图,我希望对话框有两个按钮,一个只是取消对话框,另一个做更多工作。这是我到目前为止的代码。
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<SeekBar android:max="48" android:layout_height="wrap_content" android:id="@+id/seekBar1" android:layout_width="fill_parent" android:layout_alignParentTop="true" android:layout_alignParentLeft="true" android:layout_marginTop="74dp"></SeekBar>
<TextView android:text="Change Hour Range" android:layout_height="wrap_content" android:id="@+id/textView1" android:textAppearance="?android:attr/textAppearanceLarge" android:layout_width="wrap_content" android:layout_alignParentTop="true" android:layout_centerHorizontal="true"></TextView>
<TextView android:text="Only most recent positions" android:layout_height="wrap_content" android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_below="@+id/textView1" android:layout_centerHorizontal="true" android:layout_marginTop="15dp"></TextView>
</RelativeLayout>
这是我到目前为止的警告对话框
new AlertDialog.Builder(ImTracking.this)
//is there something like setcontentview for alert dialogs?
.setPositiveButton("Cancel", null)
.setNegativeButton("OK",
new DialogInterface.OnClickListener() {
// does some work here
答案 0 :(得分:13)
是的builder.setView(View v);
这里是你如何使用它。
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View layout = inflater.inflate(R.layout.yourLayoutId, (ViewGroup) findViewById(R.id.yourLayoutRoot));
AlertDialog.Builder builder = new AlertDialog.Builder(this)
.setView(layout);
AlertDialog alertDialog = builder.create();
alertDialog.show();
SeekBar sb = (SeekBar)layout.findViewById(R.id.yourSeekBar);
sb.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser){
//Do something here with new value
}
});
编辑:将progressListener添加到示例代码中。请注意,在 之后 调用alertDialog.show()之前,您无法获得对SeekBar的引用,如果未显示SeekBar,则findViewById()将返回null。另请注意,您必须使用layout.findViewById();
,因为SeekBar是RelativeLayout的子项,'layout'是对它的引用。
答案 1 :(得分:2)
//This is the code you seek!
public void ShowDialog(){
final AlertDialog.Builder popDialog = new AlertDialog.Builder(this);
final SeekBar seek = new SeekBar(this);
seek.setMax(255);
seek.setKeyProgressIncrement(1);
popDialog.setIcon(android.R.drawable.btn_star_big_on);
popDialog.setTitle("Please Select Into Your Desired Brightness ");
popDialog.setView(seek);
seek.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser){
txtView.setText("Value of : " + progress);
}
或者您可以查看此tutorial