Android学习-各种对话框

在android的编程中，对话框的用处是非常多的，然而，有时对对话框的需求也是不一样的，那么现在，就总结对话框的种类，以及事件的处理形势。

1、简单的对话框

public void showDialog(){
   Dialog dialog = new AlertDialog.Builder(this)
    	.setTitle("标题")
    	.setMessage("消息")
    	.setPositiveButton("好", new DialogInterface.OnClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which) {
				
			}
		})
    	.setNegativeButton("不好", new DialogInterface.OnClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which) {
				
			}
		}).create();
    dialog.show();
}

2、带编辑框的对话框

public void showDialog(){
    EditText et = new EditText(this);// 单独出来，方便取用户输入的数据。
    Dialog dialog = new AlertDialog.Builder(this)  
    	.setTitle("请输入")  
    	.setIcon(android.R.drawable.ic_dialog_info)  
    	.setView(et)  
    	.setPositiveButton("确定", new DialogInterface.OnClickListener(){
			@Override
			public void onClick(DialogInterface dialog, int which) {
				
			}
    		
    	})  
    	.setNegativeButton("取消", new DialogInterface.OnClickListener(){
			@Override
			public void onClick(DialogInterface dialog, int which) {
				
			}})  
    	.create();
    dialog.show();
}

3、含单选钮的对话框

public void showDialog(){
    final String[] str = new String[]{"第一部","第二部","第二部","第三部","第四部","第五部","第六部"} ;
    // 单独列出来方便之后取数据
    	Dialog dialog = new AlertDialog.Builder(this)
    	.setTitle("单选框，请选择")
    	.setSingleChoiceItems(str, 3, new DialogInterface.OnClickListener() {
    		// 3 代表默认选中str的index=3的那个单选框
			@Override
			public void onClick(DialogInterface dialog, int which) {
				Log.e("DIYDialogActivity", "showDialog->you select " + str[which] ) ;
			}
		})
		.setPositiveButton("确定", new DialogInterface.OnClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which) {
				
			}
		})
       .create();
    dialog.show();
}

4、含多选框的对话框

public void showDialog(){
        final String[] str = new String[]{"第一部","第二部","第二部","第三部","第四部","第五部","第六部"} ;// 单独列出来方便之后取数据
    	boolean[] bstr = new boolean[]{true,false,false,false,false,false,false};
    	Dialog dialog = new AlertDialog.Builder(this)
    	.setTitle("多选框，请选择")
    	.setMultiChoiceItems(str, bstr, new DialogInterface.OnMultiChoiceClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which, boolean isChecked) {
				Log.e("DIYDialogActivity", "showDialog->" +
						"you select " + str[which]+ "vaule = " +new Boolean(isChecked).toString() ) ;
			}
    	})
    	.setPositiveButton("确定", new DialogInterface.OnClickListener(){
			@Override
			public void onClick(DialogInterface dialog, int which) {
				
			}
    	}).create();
    	dialog.show();
}

5、含列表的对话框

public void showDialog(){
        final String[] str = new String[]{"第一部","第二部","第二部","第三部","第四部","第五部","第六部"} ;
        // 单独列出来方便之后取数据
    	Dialog dialog = new AlertDialog.Builder(this)
    	.setTitle("列表框，供选择")
    	.setItems(str, new DialogInterface.OnClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which) {
				Log.e("DIYDialogActivity", "showDialog---------------------you select " + which);
			}
		})
    	.setPositiveButton("确定", new DialogInterface.OnClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which) {
				
			}
		})
    	.create();
    	dialog.show();
}

6、自定义的对话框

public void showDialog(){
        LayoutInflater inflater = getLayoutInflater();
    	View layout = inflater.inflate(R.layout.dialog_showmsg, (ViewGroup) findViewById(R.id.view_dialog)); 
    	// 可指定对话框的背景色彩那些
    	
    	Dialog dialog = new AlertDialog.Builder(this)
    	.setView(layout)
    	.create();
    	
    	// 设置对话框的出现位置，借助于window对象
    	Window win = dialog.getWindow();
    	//win.setGravity(Gravity.CENTER);
    	//win.setGravity(Gravity.BOTTOM);
    	//win.setGravity(Gravity.TOP);
    	win.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);// 弹出对话框时，底部窗体，不变暗。
    	
    	WindowManager.LayoutParams lp = win.getAttributes();
    	lp.x = -200;// x=0,y=0时，显示位置是屏幕中心。
    	lp.y = 0 ;
    	lp.alpha = 0.6f;// 对话框的透明度
    	win.setAttributes(lp);
    	
    	Button but = (Button) layout.findViewById(R.id.but_positive);
    	but.requestFocus();
    	dialog.show();
}