【总结】Android攻城狮之Dialog

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Android攻城狮之Dialog

目录

Dialog简介

  对话框是在当前界面

几种常见的Dialog

  (1)确认对话框； (2)单选按钮对话框； (3)多选按钮对话框； (4)列表对话框；

AlertDialog常用方法

  要创建一个AlertDialog,就要用到AlertDialog.Builder中的create0方法。
  - setTitle :为对话框设置标题
  - setIcon :为对话框设置图标
  - setMessage: 为对话框设置内容
  - setView :给对话框设置自定义样式
  - setItems :设置对话框要显示的一个list,一般用于显示几个命令时
  - setMultiChoiceltems: 用来设置对话框显示一系列的复选框
  - setSingleChoiceItems :设置单选按钮
  - setNeutralButton :普通按钮
  - setPositiveButton :给对话框添加”确认”按钮
  - setNegativeButton :对话框添加”取消”按钮

AlertDialog实例

确认对话框

private void initEvent(){findViewById(R.id.dialog_btn).setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {showDialog1();}});
}
private void showDialog1(){AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setTitle("确认对话框");builder.setIcon(R.drawable.ic_launcher);builder.setMessage("确认对话框提示内容");builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialogInterface, int i) {Toast.makeText(MainActivity.this,"点击了确定按钮",Toast.LENGTH_LONG).show();}});builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialogInterface, int i) {Toast.makeText(MainActivity.this, "点击了取消按钮",Toast.LENGTH_LONG).show();}});AlertDialog dialog = builder.create();dialog.show();
}

单选对话框

String[] str = {"男生","女生","程序员"};
private void showDialog2(){AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setTitle("性别选择框");builder.setIcon(R.drawable.ic_launcher);builder.setSingleChoiceItems(str, 0, new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialogInterface, int i) {String s = str[i];Toast.makeText(MainActivity.this,"我是"+s+"",Toast.LENGTH_LONG).show();}});AlertDialog dialog = builder.create();dialog.show();
}

多选按钮对话框

String[] str = {"篮球","足球","乒乓球","游泳","程序员"};
private void showDialog3(){AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setTitle("爱好选择框");builder.setIcon(R.drawable.ic_launcher);builder.setMultiChoiceItems(str, null, new DialogInterface.OnMultiChoiceClickListener() {@Overridepublic void onClick(DialogInterface dialogInterface, int i, boolean isChecked) {if(isChecked){Toast.makeText(MainActivity.this,"我喜欢上了"+str[i],Toast.LENGTH_LONG).show();}else{Toast.makeText(MainActivity.this,"我不再喜欢"+str[i],Toast.LENGTH_LONG).show();}}});AlertDialog dialog = builder.create();dialog.show();
}

列表对话框

String[] str = {"经理","策划","美工","程序员"}; 
private void showDialog4(){AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setTitle("部门列表框");builder.setIcon(R.drawable.ic_launcher);builder.setItems(str, new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialogInterface, int i) {Toast.makeText(MainActivity.this,str[i]+"态度真差",Toast.LENGTH_LONG).show();}});AlertDialog dialog = builder.create();dialog.show();
}

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