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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