Android对话框Dialog的使用

普通对话框

	private void showAlertDialogShow(){
        AlertDialog.Builder alertDialog = new AlertDialog.Builder(MainActivity.this);
        alertDialog.setIcon(R.mipmap.ic_launcher);
        alertDialog.setTitle("确定选择？");
        alertDialog.setMessage("........");
        alertDialog.setPositiveButton("确定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(MainActivity.this,"三连支持",Toast.LENGTH_SHORT).show();
            }
        });
        alertDialog.setNegativeButton("拒绝", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(MainActivity.this,"下次一定",Toast.LENGTH_SHORT).show();
            }
        });
        alertDialog.setNeutralButton("忽视", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(MainActivity.this,"假装看不见",Toast.LENGTH_SHORT).show();
            }
        });
        alertDialog.show();
    }

列表对话框

	private void showListDialogShow(){
        AlertDialog.Builder listDialog = new AlertDialog.Builder(MainActivity.this);
        listDialog.setTitle("谁是最强的男人？");
        listDialog.setIcon(R.mipmap.ic_launcher);
        final String items[] = {"A、折木奉太郎","B、空调承太郎","C、野比大雄"};
        listDialog.setItems(items, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(MainActivity.this,items[which],Toast.LENGTH_SHORT).show();
            }
        });
        listDialog.show();
	}

单选对话框

	int choice;
    private void showSingleChoiceDialogShow(){
        final String items[] = {"A、折木奉太郎","B、空调承太郎","C、野比大雄"};
        AlertDialog.Builder singleDialog = new AlertDialog.Builder(MainActivity.this);
        singleDialog.setTitle("谁是最强的男人？");
        singleDialog.setIcon(R.mipmap.ic_launcher);
        //参数2为默认选项
        singleDialog.setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                choice = which;
            }
        });
        singleDialog.setPositiveButton("确定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(MainActivity.this,items[choice],Toast.LENGTH_SHORT).show();
            }
        });
        singleDialog.show();
    }

多选对话框

	ArrayList<Integer> choices= new ArrayList<>();
    	private void showMultiDialogShow(){
        choices.clear();
        final boolean isChecked[] = {false,false,false};
        final String items[] = {"A、折木奉太郎","B、空调承太郎","C、野比大雄"};
        AlertDialog.Builder multiDialog = new AlertDialog.Builder(MainActivity.this);
        multiDialog.setTitle("谁是最强的男人？");
        multiDialog.setIcon(R.mipmap.ic_launcher);
        multiDialog.setMultiChoiceItems(items, isChecked, new DialogInterface.OnMultiChoiceClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                if(isChecked){
                    choices.add(which);
                }else{
                    choices.remove(which);
                }
            }
        });
        multiDialog.setPositiveButton("确定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                String s="";
                for (Integer choice : choices) {
                    s = s+items[choice];
                }
                Toast.makeText(MainActivity.this,s,Toast.LENGTH_SHORT).show();
            }
        });
        multiDialog.show();
    }

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本文地址：https://blog.csdn.net/weixin_43742354/article/details/103945159