Android 提示框

文章参考/转自： https://www.cnblogs.com/xiaoxiaoqingyi/p/6738108.html 

感谢博主的无私奉献,受益匪浅。

效果很好，如图:

1. 定义CommonDialog类

public class CommonDialog extends Dialog implements View.OnClickListener{
    private TextView contentTxt;
    private TextView titleTxt;
    private TextView submitTxt;
    private TextView cancelTxt;

    private Context mContext;
    private String content;
    private OnCloseListener listener;
    private String positiveName;
    private String negativeName;
    private String title;

    public CommonDialog(Context context) {
        super(context);
        this.mContext = context;
    }

    public CommonDialog(Context context, int themeResId, String content) {
        super(context, themeResId);
        this.mContext = context;
        this.content = content;
    }

    public CommonDialog(Context context, int themeResId, String content, OnCloseListener listener) {
        super(context, themeResId);
        this.mContext = context;
        this.content = content;
        this.listener = listener;
    }

    protected CommonDialog(Context context, boolean cancelable, OnCancelListener cancelListener) {
        super(context, cancelable, cancelListener);
        this.mContext = context;
    }

    public CommonDialog setTitle(String title){
        this.title = title;
        return this;
    }

    public CommonDialog setPositiveButton(String name){
        this.positiveName = name;
        return this;
    }

    public CommonDialog setNegativeButton(String name){
        this.negativeName = name;
        return this;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dialog_dialog);
        setCanceledOnTouchOutside(false);
        initView();
    }

    private void initView(){
        contentTxt = (TextView)findViewById(R.id.content);
        titleTxt = (TextView)findViewById(R.id.title);
        submitTxt = (TextView)findViewById(R.id.submit);
        submitTxt.setOnClickListener(this);
        cancelTxt = (TextView)findViewById(R.id.cancel);
        cancelTxt.setOnClickListener(this);

        contentTxt.setText(content);
        if(!TextUtils.isEmpty(positiveName)){
            submitTxt.setText(positiveName);
        }

        if(!TextUtils.isEmpty(negativeName)){
            cancelTxt.setText(negativeName);
        }

        if(!TextUtils.isEmpty(title)){
            titleTxt.setText(title);
        }

    }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.cancel:
                if(listener != null){
                    listener.onClick(this, false);
                }
                this.dismiss();
                break;
            case R.id.submit:
                if(listener != null){
                    listener.onClick(this, true);
                }
                break;
        }
    }

    public interface OnCloseListener{
        void onClick(Dialog dialog, boolean confirm);
    }
}

2. 创建布局文件dialog_dialog.xml:

3. drawable目录下添加如下三个样式文件   

    bg_dialog_left_white.xml

    bg_dialog_right_white.xml

    bg_round_white.xml

4. 在res\values\colors.xml添加

    #424242
    #a1a1a1
    #42369a
    #f3f3f3

5. 在在res\values\styles.xml添加

调用实例(程序退出时的一个确认框 和效果图对应) 代码如下:

    @Override
    public void onBackPressed() {
        //super.onBackPressed();  //注释掉这行,back键不退出activity
        new CommonDialog(context, R.style.dialog, "确定退出程序?", new CommonDialog.OnCloseListener() {
            @Override
            public void onClick(Dialog dialog, boolean confirm) {
                if (confirm) {
                    dialog.dismiss();
                    ActivityCollector.finishAll(); //关闭所有活动  退出程序
                } else {
                    dialog.cancel();
                }
            }
        }).setTitle("提示").show();
    }