前面一篇文章介绍了alertDialog的四种简单使用，但是有些时候为了让整个app的风格统一，或者说前面的四种形式不符合项目中的需求，这个时候就需要我们自定义alertDialog了。直接上代码

CustomAlertDialog:

import android.app.Dialog; import android.content.Context; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.TextView; /** * Created by yk on 2017/1/17. */ public class CustomAlertDialog extends Dialog implements View.OnClickListener { public interface OnDialogButtonClickListener { /** * 点击按钮的回调方法 * * @param requestCode * @param isPositive */ void onDialogButtonClick(int requestCode, boolean isPositive); } private Context context; private String title; private String message; private String strPositive; private String strNegative; private int requestCode; private OnDialogButtonClickListener listener; public CustomAlertDialog(Context context, String title, String message, int requestCode, OnDialogButtonClickListener listener) { super(context, R.style.MyDialog); this.context=context; this.title=title; this.message=message; this.requestCode=requestCode; this.listener=listener; } private TextView tvTitle; private TextView tvMessage; private Button btnPositive; private Button btnNegative; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.alert_dialog); // setCancelable(false);//设置点击对话框外部和按返回键都不可以取消 // setCanceledOnTouchOutside(false);//设置点击对话框外部是否可以取消，默认是不可以取消（但是点返回键可以取消） tvTitle = (TextView) findViewById(R.id.tvAlertDialogTitle); tvMessage = (TextView) findViewById(R.id.tvAlertDialogMessage); btnPositive = (Button) findViewById(R.id.btnAlertDialogPositive); btnNegative = (Button) findViewById(R.id.btnAlertDialogNegative); tvTitle.setText(title); tvMessage.setText(message); btnPositive.setOnClickListener(this); btnNegative.setOnClickListener(this); } @Override public void onClick(View view) { switch (view.getId()){ case R.id.btnAlertDialogPositive: //确定按钮 listener.onDialogButtonClick(requestCode,true); break; case R.id.btnAlertDialogNegative: //取消按钮 listener.onDialogButtonClick(requestCode,false); break; } dismiss(); } }

MainActivity:

package com.example.yk.dialogtest; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.Toast; public class CustomDialogActivity extends AppCompatActivity implements CustomAlertDialog.OnDialogButtonClickListener { private static final int REQUEST_CODE_FIRST = 1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_custom_dialog); CustomAlertDialog alertDialog=new CustomAlertDialog(this,"title","message",REQUEST_CODE_FIRST,this); alertDialog.show(); } @Override public void onDialogButtonClick(int requestCode, boolean isPositive) { if(requestCode==REQUEST_CODE_FIRST && isPositive){ Toast.makeText(this, "点击了确定", Toast.LENGTH_SHORT).show(); } else if (requestCode==REQUEST_CODE_FIRST && !isPositive) { Toast.makeText(this, "点击了取消", Toast.LENGTH_SHORT).show(); } } }

实现的效果：

如果我们需要自定义“确定”和“取消”按钮所显示的字，可以再写一个构造方法，比如：

public AlertDialog(Context context, String title, String message,String strPositive, String strNegative, int requestCode, OnDialogButtonClickListener listener) { super(context, R.style.MyDialog); this.context = context; this.title = title; this.message = message; this.strPositive = strPositive; this.strNegative = strNegative; this.requestCode = requestCode; this.listener = listener; } if(!TextUtils.isEmpty(strPositive)){ btnPositive.setText(strPositive); } if(!TextUtils.isEmpty(strNegative)){ btnNegative.setText(strNegative); }

实现的效果：

源码(包括上篇文章中四种简单alertDialog的使用)：http://xiazai.jb51.net/201701/yuanma/androidAlertDialog(jb51.net).rar

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。