Android 封装实现各种样式对话框

Posted 2020-09-26 slgkaifa

先上图 

实现代码

package com.jock.alertdialog;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
import android.widget.Toast;

/**
 * 精仿iosAlertViewController控件Demo
 */
public class MainActivity extends Activity implements OnItemClickListener, OnDismissListener {

    private AlertView mAlertView;//避免创建反复View。先创建View，然后须要的时候show出来，推荐这个做法
    private AlertView mAlertViewExt;//窗体拓展样例
    private EditText etName;//拓展View内容
    private InputMethodManager imm;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
        mAlertView = new AlertView("标题", "内容", "取消", new String[]{"确定"}, null, this, AlertView.Style.Alert, this).setCancelable(true).setOnDismissListener(this);
        //拓展窗体
        mAlertViewExt = new AlertView("提示", "请完好你的个人资料。", "取消", null, new String[]{"完毕"}, this, AlertView.Style.Alert, this);
        ViewGroup extView = (ViewGroup) LayoutInflater.from(this).inflate(R.layout.alertext_form,null);
        etName = (EditText) extView.findViewById(R.id.etName);
        etName.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            @Override
            public void onFocusChange(View view, boolean focus) {
                //输入框出来则往上移动
                boolean isOpen=imm.isActive();
                mAlertViewExt.setMarginBottom(isOpen&&focus ?
 120 :0);
                System.out.println(isOpen);
            }
        });
        mAlertViewExt.addExtView(extView);
    }

    public void alertShow1(View view) {
        mAlertView.show();
    }

    public void alertShow2(View view) {
        new AlertView("标题", "内容", null, new String[]{"确定"}, null, this, AlertView.Style.Alert, this).show();
    }

    public void alertShow3(View view) {
        new AlertView(null, null, null, new String[]{"高亮button1", "高亮button2", "高亮button3"},
                new String[]{"其它button1", "其它button2", "其它button3", "其它button4", "其它button5", "其它button6",
                        "其它button7", "其它button8", "其它button9", "其它button10", "其它button11", "其它button12"},
                this, AlertView.Style.Alert, this).show();
    }

    public void alertShow4(View view) {
        new AlertView("标题", null, "取消", new String[]{"高亮button1"}, new String[]{"其它button1", "其它button2", "其它button3"}, this, AlertView.Style.ActionSheet, this).show();
    }

    public void alertShow5(View view) {
        new AlertView("标题", "内容", "取消", null, null, this, AlertView.Style.ActionSheet, this).setCancelable(true).show();
    }

    public void alertShow6(View view) {
        new AlertView("上传头像", null, "取消", null,
                new String[]{"拍照", "从相冊中选择"},
                this, AlertView.Style.ActionSheet, this).show();
    }

    public void alertShowExt(View view) {
        mAlertViewExt.show();
    }
    private void closeKeyboard() {
        //关闭软键盘
        imm.hideSoftInputFromWindow(etName.getWindowToken(),0);
        //恢复位置
        mAlertViewExt.setMarginBottom(0);
    }
    @Override
    public void onItemClick(Object o,int position) {
        closeKeyboard();
        //推断是否是拓展窗体View。并且点击的是非取消button
        if(o == mAlertViewExt && position != AlertView.CANCELPOSITION){
            String name = etName.getText().toString();
            if(name.isEmpty()){
                Toast.makeText(this, "啥都没填呢", Toast.LENGTH_SHORT).show();
            }
            else{
                Toast.makeText(this, "hello,"+name, Toast.LENGTH_SHORT).show();
            }

            return;
        }
        Toast.makeText(this, "点击了第" + position + "个", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onDismiss(Object o) {
        closeKeyboard();
        Toast.makeText(this, "消失了", Toast.LENGTH_SHORT).show();
    }
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event)
    {
        if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0)
        {
            if(mAlertView!=null && mAlertView.isShowing()){
                mAlertView.dismiss();
                return false;
            }
        }

        return super.onKeyDown(keyCode, event);

    }
}

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