Android对话框AlertDialog-android学习之旅（四十二）

对话框简介

android提供了丰富的对话框支持，支持四种如下的对话框。

AlertDialog简介

介绍上面六个方法的代码示例

setMessage（）

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    >

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Large Text"
        android:id="@+id/text02" />

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="setMessage"
        android:id="@+id/button"
        android:onClick="dialog"/>
</LinearLayout>

package peng.liu.test;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.TabActivity;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TabHost;
import android.widget.TextView;

public class MainActivity extends Activity {
    TextView text02;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        text02 = (TextView) findViewById(R.id.text02);
        Button setMessage = (Button) findViewById(R.id.button);
    }
    public void dialog(View view){
        AlertDialog.Builder builder = new AlertDialog.Builder(this).setIcon(R.drawable.ic_launcher)
                .setTitle("dialog")
                .setMessage("hello world");
        setPositiveButton(builder);
        setNegitiveButton(builder);
        builder.create().show();
    }
    public void setPositiveButton(AlertDialog.Builder builder){
        builder.setPositiveButton("确定",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                     text02.setText("单击了确定按钮");
            }
        });
    }
    public void setNegitiveButton(AlertDialog.Builder builder){
        builder.setNegativeButton("取消",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                text02.setText("单击了取消按钮");
            }
        });
    }
}

简单列表对话框setItems（）

需要传入一个数组或者数组的资源id

package peng.liu.test;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.TabActivity;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TabHost;
import android.widget.TextView;

public class MainActivity extends Activity {
    TextView text02;
    private String[] items = new String[]{
            "java","python","html","css"
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        text02 = (TextView) findViewById(R.id.text02);
        Button setMessage = (Button) findViewById(R.id.button);
    }
    public void dialog(View view){
        AlertDialog.Builder builder = new AlertDialog.Builder(this).setIcon(R.drawable.ic_launcher)
                .setTitle("dialog")
                .setItems(items,new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        text02.setText(items[i]);
                    }
                });
        setPositiveButton(builder);
        setNegitiveButton(builder);
        builder.create().show();
    }
    public void setPositiveButton(AlertDialog.Builder builder){
        builder.setPositiveButton("确定",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                     text02.setText("单击了确定按钮");
            }
        });
    }
    public void setNegitiveButton(AlertDialog.Builder builder){
        builder.setNegativeButton("取消",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                text02.setText("单击了取消按钮");
            }
        });
    }
}

单选列表对话框setSingleChooseItems

参数是数组，sursor，或者ListAdapter。

package peng.liu.test;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.TabActivity;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TabHost;
import android.widget.TextView;

public class MainActivity extends Activity {
    TextView text02;
    private String[] items = new String[]{
            "java","python","html","css"
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        text02 = (TextView) findViewById(R.id.text02);
        Button setMessage = (Button) findViewById(R.id.button);
    }
    public void dialog(View view){
        AlertDialog.Builder builder = new AlertDialog.Builder(this).setIcon(R.drawable.ic_launcher)
                .setTitle("dialog")
                //1表示第二个框被选中
                .setSingleChoiceItems(items,1,new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        text02.setText(items[i]);
                    }
                });
        setPositiveButton(builder);
        setNegitiveButton(builder);
        builder.create().show();
    }
    public void setPositiveButton(AlertDialog.Builder builder){
        builder.setPositiveButton("确定",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                     text02.setText("单击了确定按钮");
            }
        });
    }
    public void setNegitiveButton(AlertDialog.Builder builder){
        builder.setNegativeButton("取消",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                text02.setText("单击了取消按钮");
            }
        });
    }
}

多选列表对话框 setMultiChooseItems

参数是数组或者cursor

package peng.liu.test;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.TabActivity;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TabHost;
import android.widget.TextView;

public class MainActivity extends Activity {
    TextView text02;
    private String[] items = new String[]{
            "java","python","html","css"
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        text02 = (TextView) findViewById(R.id.text02);
        Button setMessage = (Button) findViewById(R.id.button);
    }
    public void dialog(View view){
        AlertDialog.Builder builder = new AlertDialog.Builder(this).setIcon(R.drawable.ic_launcher)
                .setTitle("dialog")
                //布尔数组表示第二个和第四个被选中
                .setMultiChoiceItems(items,new boolean[]{false,true,false,true},null);
        setPositiveButton(builder);
        setNegitiveButton(builder);
        builder.create().show();
    }
    public void setPositiveButton(AlertDialog.Builder builder){
        builder.setPositiveButton("确定",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                     text02.setText("单击了确定按钮");
            }
        });
    }
    public void setNegitiveButton(AlertDialog.Builder builder){
        builder.setNegativeButton("取消",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                text02.setText("单击了取消按钮");
            }
        });
    }
}

自定义列表项对话框 setAdapter

参数是Adapter，该方法和setSingleChooseItems都可以接受Adapter作为参数。

package peng.liu.test;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.TabActivity;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.TabHost;
import android.widget.TextView;

public class MainActivity extends Activity {
    TextView text02;
    private String[] items = new String[]{
            "java","python","html","css"
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        text02 = (TextView) findViewById(R.id.text02);
        Button setMessage = (Button) findViewById(R.id.button);
    }
    public void dialog(View view){
        AlertDialog.Builder builder = new AlertDialog.Builder(this).setIcon(R.drawable.ic_launcher)
                .setTitle("dialog")
                //布尔数组表示第二个和第四个被选中
                .setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,items),null);
        setPositiveButton(builder);
        setNegitiveButton(builder);
        builder.create().show();
    }
    public void setPositiveButton(AlertDialog.Builder builder){
        builder.setPositiveButton("确定",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                     text02.setText("单击了确定按钮");
            }
        });
    }
    public void setNegitiveButton(AlertDialog.Builder builder){
        builder.setNegativeButton("取消",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                text02.setText("单击了取消按钮");
            }
        });
    }
}

自定义View对话框

自定义的任何的View组件

package peng.liu.test;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

public class MainActivity extends Activity {
    TextView text02;
    private String[] items = new String[]{
            "java","python","html","css"
    };
    ImageView image;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        text02 = (TextView) findViewById(R.id.text02);
        Button setMessage = (Button) findViewById(R.id.button);
        image = new ImageView(this);
        image.setImageResource(R.drawable.ic_launcher);
        image.setScaleType(ImageView.ScaleType.FIT_XY);
        image.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
    }
    public void dialog(View view){
        AlertDialog.Builder builder = new AlertDialog.Builder(this).setIcon(R.drawable.ic_launcher)
                .setTitle("dialog")
                //布尔数组表示第二个和第四个被选中
                .setView(image);
    }
    public void setPositiveButton(AlertDialog.Builder builder){
        builder.setPositiveButton("确定",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                     text02.setText("单击了确定按钮");
            }
        });
    }
    public void setNegitiveButton(AlertDialog.Builder builder){
        builder.setNegativeButton("取消",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                text02.setText("单击了取消按钮");
            }
        });
    }
}