Android Dialog详解及实例代码

 Android Dialog详解及实例代码

概述：

Android开发中最常用的就是Dialog类，除了自定义dialog布局，最多的就是用在弹出对话框、进度条、输入框、单选、复选框。

1、选择对话框：

AlertDialog.Builder dialog = new AlertDialog.Builder(this);
dialog.setTitle("选择对话框");
dialog.setMessage("请选择确认或取消");
dialog.setCancelable(false); //设置按下返回键不能消失
dialog.setPositiveButton("确认", new DialogInterface.OnClickListener() {
  @Override
  public void onClick(DialogInterface dialog, int which) {
    Toast.makeText(MainActivity.this, "您选择了确认", Toast.LENGTH_LONG).show();
      }
    });
    dialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        Toast.makeText(MainActivity.this, "您选择了取消", Toast.LENGTH_LONG).show();
      }
    });
dialog.show();//显示弹出窗口

2、进度条

ProgressDialog progressDialog = new ProgressDialog(this);
progressDialog.setTitle("显示进度条");
progressDialog.setMessage("加载中...");
progressDialog.setCancelable(true);
progressDialog.show();

3、弹出输入框

AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("弹出输入框");
builder.setMessage("输入内容");
final EditText editText = new EditText(this);
builder.setView(editText);
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
      @Override
  public void onClick(DialogInterface dialog, int which) {
    Toast.makeText(MainActivity.this, "您输入了" + editText.getText().toString(), Toast.LENGTH_SHORT).show();
      }
  });
builder.setNegativeButton("取消", null);
builder.show();

4、弹出单选框

final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("弹出单选框");
final String[] choice = new String[]{"Java", "C++", "PHP"};
builder.setSingleChoiceItems(choice, 0,
  new DialogInterface.OnClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which) {
      Toast.makeText(MainActivity.this, "您选择了" + choice[which], Toast.LENGTH_LONG).show();
      dialog.dismiss(); // 让窗口消失
    }
  });
builder.create().show();

5、弹出复选框

final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("弹出多选框");
final String[] choice = new String[]{"Android", "IOS", "Windos Phone"}; // 选择项
final boolean[] isCheck = new boolean[choice.length]; // 是否被选中
builder.setMultiChoiceItems(choice, null,
  new DialogInterface.OnMultiChoiceClickListener() {
    @Override
    public void onClick(DialogInterface dialog, int which, boolean isChecked) {
      if (isChecked == true)
        isCheck[which] = true;
      else if(isChecked == false)
        isCheck[which] = false;
     }
  });
builder.setNegativeButton("取消", null);
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
  @Override
  public void onClick(DialogInterface dialog, int which) {
    String isSelected = "您选择了";
    for (int i = 0; i < choice.length; i++) {
      if (isCheck[i] == true) {
        isSelected += choice[i]+","; // 将选择的内容加上
      }
    }
    Toast.makeText(MainActivity.this, isSelected, Toast.LENGTH_LONG).show();
   }
});
builder.create();
builder.show();

6、自定义布局的Dialog

AlertDialog.Builder builder = new AlertDialog.Builder(this);
 final AlertDialog dialog = builder.create();
 View view = View.inflate(this, R.layout.personal_modifyhead_dialog, null);
 dialog.setView(view, 0, 0, 0, 0);// 设置边距为0,保证在2.x的版本上运行没问题
 dialog.show(); 

 AutoRelativeLayout rl_photograph = (AutoRelativeLayout) view.findViewById(R.id.rl_photograph);
 rl_photograph.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View v) {
     presenter.modiftHeadFromPhotograph();
     dialog.dismiss();
   }
 }); 

 AutoRelativeLayout rl_album = (AutoRelativeLayout) view.findViewById(R.id.rl_album);
 rl_album.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View v) {
     presenter.modifyHeadFromAlbum();
     dialog.dismiss();
   }
 });

上面就是日常开发中常用的一些，在此记录，以便日后查询。

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