2.8 自定义Dialog（图9）
<!-- res/layout/dialog_customize.xml-->
<!-- 自定义View -->
<LinearLayout xmlns:android="http://www.easck.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<EditText
android:id="@+id/edit_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
private void showCustomizeDialog() {
/* @setView 装入自定义View ==> R.layout.dialog_customize
* 由于dialog_customize.xml只放置了一个EditView，因此和图8一样
* dialog_customize.xml可自定义更复杂的View
*/
AlertDialog.Builder customizeDialog =
new AlertDialog.Builder(MainActivity.this);
final View dialogView = LayoutInflater.from(MainActivity.this)
.inflate(R.layout.dialog_customize,null);
customizeDialog.setTitle("我是一个自定义Dialog");
customizeDialog.setView(dialogView);
customizeDialog.setPositiveButton("确定",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// 获取EditView中的输入内容
EditText edit_text =
(EditText) dialogView.findViewById(R.id.edit_text);
Toast.makeText(MainActivity.this,
edit_text.getText().toString(),
Toast.LENGTH_SHORT).show();
}
});
customizeDialog.show();
}
3.复写回调函数
/* 复写Builder的create和show函数，可以在Dialog显示前实现必要设置
* 例如初始化列表、默认选项等
* @create 第一次创建时调用
* @show 每次显示时调用
*/
private void showListDialog() {
final String[] items = { "我是1","我是2","我是3","我是4" };
AlertDialog.Builder listDialog =
new AlertDialog.Builder(MainActivity.this){
@Override
public AlertDialog create() {
items[0] = "我是No.1";
return super.create();
}
@Override
public AlertDialog show() {
items[1] = "我是No.2";
return super.show();
}
};
listDialog.setTitle("我是一个列表Dialog");
listDialog.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// ...To-do
}
});
/* @setOnDismissListener Dialog销毁时调用
* @setOnCancelListener Dialog关闭时调用
*/
listDialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
public void onDismiss(DialogInterface dialog) {
Toast.makeText(getApplicationContext(),
"Dialog被销毁了",
Toast.LENGTH_SHORT).show();
}
});
listDialog.show();
}
