Andorid中经常使用到格式对话框。如下：
1.确定对话框：
实现代码：
new AlertDialog.Builder(this).setTitle("确认").setMessage("确定吗？")
.setPositiveButton("是",new Alert1())
.setNegativeButton("否",null).show();
2.提示框：
代码：
dialog =new AlertDialog.Builder(this)
.setTitle("标题")
.setMessage("你登陆成功了")
.setPositiveButton("确定",null)
.show();
3.带输入框的：
代码：
editText = new EditText(this);
new AlertDialog.Builder(this)
.setTitle("请输入")
.setIcon(android.R.drawable.ic_dialog_info)
.setView(editText)
.setPositiveButton("确定",new Alert3())
.setNegativeButton("取消",null).show();
4.单选对话框：
代码：
new AlertDialog.Builder(this)
.setTitle("请选择")
.setIcon(android.R.drawable.ic_dialog_info)
.setSingleChoiceItems(new String[] {"红色","黄色","蓝色","黑色" },0, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int which) {
dialog.dismiss();
Toast.makeText(MainActivity.this,"你选择了: " + which,5).show();
}})
.setNegativeButton("取消",null).show();
5.多选：
代码：
new AlertDialog.Builder(this)
.setTitle("多选框")
.setMultiChoiceItems( new String[] {"选项1","选项2","选项3","选项4"},null,null)
.setPositiveButton("确定",null)
.setNegativeButton("取消",null)
.show();
6.自定义：
view = LayoutInflater.from(this).inflate(R.layout.alert6,null);// 自定义布局
dialog=new AlertDialog.Builder(this).create();
Button leftButton = (Button) view.findViewById(R.id.bt1);
leftButton.setOnClickListener(new android.view.View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this,"你点击了左边按钮", Toast.LENGTH_LONG).show();
dialog.dismiss();
}
});
Button rightButton = (Button) view.findViewById(R.id.bt2);
rightButton.setOnClickListener(newandroid.view.View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this,"你点击了右边按钮", Toast.LENGTH_LONG).show();
dialog.dismiss();
}
});
dialog.show();
WindowManager.LayoutParams params =dialog.getWindow().getAttributes();// 得到属性
params.gravity= Gravity.CENTER;// 显示在中间
params.width= (int) (getWindowManager().getDefaultDisplay().getWidth() * 0.8);// 设置对话框的宽度为手机屏幕的0.8
params.height= (int) (getWindowManager().getDefaultDisplay().getHeight() * 0.25);// 设置对话框的高度为手机屏幕的0.25
dialog.getWindow().setAttributes(params);// 设置属性
dialog.getWindow().setContentView(view);// 把自定义view加上去