Android Dialog的封装

程序员文章站 2022-05-16 14:40:20

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效果
Android Dialog的封装
常规使用：

                Dialog dialog=new Dialog(this,R.style.DialogStyle);
                View dilaogView = LayoutInflater.from(this).inflate(
                        R.layout.dialog_diylayout, null);
                dialog.setContentView(dilaogView);
                dialog.show();

如果需要设置dialog的弹出位置，则需要用到Window，通过setGravity来控制dialog位置

        Dialog  dialog = new Dialog(context, R.style.DialogStyle);
        Window win = dialog.getWindow();
        win.getDecorView().setPadding(0, 0, 0, 0);
        WindowManager.LayoutParams lp = win.getAttributes();
        // 设置弹出框的宽高
        lp.width = WindowManager.LayoutParams.WRAP_CONTENT;
        lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
        // 设置弹出框的位置
        win.setGravity(Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL);
        win.setAttributes(lp);
        win.setContentView(R.layout.dialog_gravity);
        dialog.show();

之后就是封装Dialog了

我们把dialog的初始化，findView和设置点击事件都封装在一个类里，在给出一些set方法和接口

import android.app.Dialog;
import android.content.Context;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.TextView;

import com.diydialog.R;

/**
 * Created by KID on 2018/1/18.
 */

public class DiyDialog {
    private Context context;
    private Dialog dialog;

    private TextView tv_dialog_content;
    private TextView tv_cancle;
    private TextView tv_ok;

    private String content;
    private String cancle;
    private String ok ;

    public DialogClickListener dialogClickListener;
    public void setDialogClickListener(DialogClickListener dialogClickListener){
        this.dialogClickListener=dialogClickListener;
    }

    public DiyDialog setContent(String content) {
        this.content = content;
        return this;
    }
    public DiyDialog setCancle(String cancle) {
        this.cancle = cancle;
        return this;
    }
    public DiyDialog setOk(String ok) {
        this.ok = ok;
        return this;
    }

    public DiyDialog(Context context){
        this.context=context;
    }
    public DiyDialog builder(){
        View view = LayoutInflater.from(context).inflate(
                R.layout.dialog_diylayout, null);

        tv_dialog_content= (TextView) view.findViewById(R.id.tv_dialog_content);
        tv_cancle= (TextView) view.findViewById(R.id.tv_cancle);
        tv_ok= (TextView) view.findViewById(R.id.tv_ok);
        if(!TextUtils.isEmpty(content))tv_dialog_content.setText(content);
        if(!TextUtils.isEmpty(cancle))tv_cancle.setText(cancle);
        if(!TextUtils.isEmpty(ok))tv_ok.setText(ok);

        tv_cancle.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if(dialogClickListener!=null)dialogClickListener.cancle();
            }
        });
        tv_ok.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if(dialogClickListener!=null)dialogClickListener.ok();
            }
        });


        dialog = new Dialog(context, R.style.DialogStyle);
        dialog.setContentView(view);

        return this;
    }
    public void show() {
        if(dialog!=null)dialog.show();
    }
    public void cancle() {
        if(dialog!=null)dialog.cancel();
    }


    public interface DialogClickListener{
        void cancle();
        void ok();
    }

}

使用这个封装dialog的代码

                final DiyDialog diyDialog =new DiyDialog(this);
                diyDialog.setCancle("No").setOk("Yes").setContent("Are you kidding me?");
                diyDialog.setDialogClickListener(new DiyDialog.DialogClickListener() {
                    @Override
                    public void cancle() {
                        diyDialog.cancle();
                    }
                    @Override
                    public void ok() {
                        diyDialog.cancle();
                        Toast.makeText(MainActivity.this, "ok哟呵呵呵呵", Toast.LENGTH_SHORT).show();
                    }
                });
                diyDialog.builder().show();

当然你也可以写成一整条链式过去，个人风格问题，比较喜欢分开写。

如果需要弹出动画

win.setWindowAnimations(R.style.mystyle);

    <style name="mystyle" parent="android:Animation">
        <item name="@android:windowEnterAnimation">@anim/dialog_enter</item>  //进入时的动画
        <item name="@android:windowExitAnimation">@anim/dialog_exit</item>    //退出时的动画
    </style>

dialog_enter.xml

<set xmlns:android="http://schemas.android.com/apk/res/android">

    <translate
        android:fromYDelta="100%p"
        android:duration="300" />
</set>

dialog_exit.xml

<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate
        android:toYDelta="100%p"
        android:duration="300" />
</set>

上面new Dialog的时候传入的 R.style.DialogStyle只是一个样式，非必传。不过建议还是加上,在styles.xml中插入

    <!-- Dialog的样式 -->
    <style name="DialogStyle" parent="@android:style/Theme.Dialog">
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowFrame">@null</item>
        <item name="android:backgroundDimEnabled">true</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowIsTranslucent">true</item>
    </style>