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Android 中AlterDialog使用，AlterDialog的使用分为两种，一种是直接使用，一种是自己设计一个Layout，然后当做Dialog显示出来。
1、定义两个Button，一个用来显示AlterDialog，一个显示自定义的AlterDialog。
private Button bt1; private Button bt2; |
注册事件
protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout.activity_main); bt1 = (Button) this .findViewById(R.id.button1); bt1.setOnClickListener( new OnClickEvent()); bt2 = (Button) this .findViewById(R.id.button2); bt2.setOnClickListener( new OnClickEvent()); } |
2、bt1显示普通的AlterDialog，bt2显示自己定义的AlterDialog。
class OnClickEvent implements OnClickListener { @Override public void onClick(View v) { // TODO Auto-generated method stub if (v == bt1) { ShowDialog(MainActivity. this ); } if (v == bt2) { showDialog_Layout(MainActivity. this ); } } } |
3、ShowDialog方法显示带有三个按钮的Dialog。分别为OK，Cancle，Reset。以及三个Button的单击事件。
private void ShowDialog(Context context) { AlertDialog.Builder build = new AlertDialog.Builder(context); build.setIcon(R.drawable.ic_launcher); build.setTitle( "Dialog Title" ); build.setMessage( "Dialog Message" ); build.setPositiveButton( "OK" , new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub setTitle( "You click OK" ); } }); build.setNeutralButton( "Reset" , new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub setTitle( "You click Reset" ); } }); build.setNegativeButton( "Cancle" , new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub setTitle( "You click Cancle" ); } }); build.show(); } |
showDialog_Layout显示自己定义的AlterDialog，定义了两个按钮，分别为OK和Cancle，以及各自的单击事件。
private void showDialog_Layout(Context context) { LayoutInflater inflater = LayoutInflater.from( this ); final View view = inflater.inflate(R.layout.mydialoglayout, null ); final EditText txt = (EditText)view.findViewById(R.id.editText1); AlertDialog.Builder build = new AlertDialog.Builder(context); build.setIcon(R.drawable.ic_launcher); build.setTitle( "Dialog Title" ); build.setCancelable( false ); build.setIcon(R.drawable.ic_launcher); build.setView(view); build.setPositiveButton( "Ok" , new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub setTitle(txt.getText()); } }); build.setNegativeButton( "Cancel" , new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub setTitle( "" ); } }); build.show(); } |
自定义的mydialoglayout.xml的UI代码为：
<?xml version= "1.0" encoding= "utf-8" ?> <LinearLayout xmlns:android= "http://schemas.android.com/apk/res/android" android:layout_width= "match_parent" android:layout_height= "match_parent" android:orientation= "vertical" > <EditText android:id= "@+id/editText1" android:layout_width= "match_parent" android:layout_height= "wrap_content" android:ems= "10" > <requestFocus /> </EditText> </LinearLayout> |
这个UI是自定义的，当然可以定义的更复杂。上面就放了一个EditText。
本文转自Work Hard Work Smart博客园博客，原文链接：http://www.cnblogs.com/linlf03/archive/2013/03/14/2959585.html，如需转载请自行联系原作者