android AlertDialog多种使用方法详解

当你的应用需要显示一个进度条或需要用户对信息进行确认时，可以使用alertDialog来完成。下面来介绍常用的四种AlertDialog。

1、普通对话框

package com.example.yk.dialogtest;

import android.content.DialogInterface;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;

/**
* AlertDialog普通对话框
*/
public class GeneralDialogActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_general_dialog);
 AlertDialog.Builder alertDialog = new AlertDialog.Builder(this)
   .setTitle("操作title")//设置title
   .setMessage("操作message")//设置要显示的message
   .setCancelable(false)//表示点击dialog其它部分不能取消(除了“取消”，“确定”按钮)
   .setPositiveButton("确定", new
     DialogInterface.OnClickListener() {
  @Override
  public void onClick(DialogInterface dialogInterface, int i) {
   Toast.makeText(GeneralDialogActivity.this, "点击了确定", Toast.LENGTH_SHORT).show();

}
 }).setNegativeButton("取消", new DialogInterface.OnClickListener() {
  @Override
  public void onClick(DialogInterface dialogInterface, int i) {
//    dialogInterface.dismiss();
  }
 });
 alertDialog.show();//别忘了show
}
}

2、单选对话框

package com.example.yk.dialogtest;

import android.content.DialogInterface;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;

/**
* 单选对话框
*/
public class SingleDialogActivity extends AppCompatActivity {
private String[] items={"java","php","c"};
@Override
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_single_dialog);
 AlertDialog.Builder alertDialog = new AlertDialog.Builder(this)
   .setTitle("提示title")
//    .setMessage("提示message")//在需要设置单选对话框的情况下是不能设置message的，否则单选对话框内容会失效
   .setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {//checkedItem=-1表示默认不选中
    @Override
    public void onClick(DialogInterface dialogInterface, int i) {
     Toast.makeText(SingleDialogActivity.this, "选中了"+items[i], Toast.LENGTH_SHORT).show();
    }
   }).setPositiveButton("确定", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialogInterface, int i) {

}
   });
  alertDialog.show();
}
}

3、多选对话框

package com.example.yk.dialogtest;

import android.content.DialogInterface;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;

/**
* 多选对话框
*/
public class MultiChoiceDialogActivity extends AppCompatActivity {
private String[] items={"java","php","c"};
@Override
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_multi_choice_dialog);
 AlertDialog.Builder alertDialog = new AlertDialog.Builder(this)
   .setTitle("提示title")
   .setCancelable(false)
   .setMultiChoiceItems(items, new boolean[]{false, false, false}, new DialogInterface.OnMultiChoiceClickListener() {

@Override
    public void onClick(DialogInterface dialogInterface, int i, boolean b) {
     if(b){
      Toast.makeText(MultiChoiceDialogActivity.this, "选中了"+items[i], Toast.LENGTH_SHORT)
        .show();
     }

}
   })
   .setPositiveButton("确定", new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialogInterface, int i) {

}
   });
 alertDialog.show();
}
}

4、进度条对话框

package com.example.yk.dialogtest;

import android.app.ProgressDialog;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

/**
* 进度条对话框
*/
public class ProgressDialogActivity extends AppCompatActivity {
private ProgressDialog progressDialog;

@Override
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_progress_dialog);
 progressDialog = new ProgressDialog(this);
 progressDialog.setTitle("提示title");
 progressDialog.setCancelable(true);
//  progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);//旋转进度条，默认风格
 progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);//横向进度条
 progressDialog.show();

}
}