打造Android通用的自定义AlertDialog提示框使用示例

/*Copyright ©2015 TommyLemon(https://github.com/TommyLemon) Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.*/ package com.example.ruedey.alertdialog; import android.app.Dialog; import android.content.Context; import android.os.Bundle; import android.view.Gravity; import android.view.View; import android.view.WindowManager; import android.widget.TextView; /** * 通用对话框类 */ public class AlertDialog extends Dialog implements android.view.View.OnClickListener { private Context context; private String title; private String message; private String strPositive; private String strNegative; private OnDialogButtonClickListener listener; private boolean cancelable = true; private TextView tvTitle; private TextView tvMessage; private TextView btnPositive; private TextView btnNegative; private View viewDeliver; /** * @param context * @param title * @param message * @param strPositive "确定"类按钮文本 * @param strNegative "取消"类按钮文本 * @param listener */ public AlertDialog(Context context, String title, String message, String strPositive, String strNegative, OnDialogButtonClickListener listener) { super(context, R.style.MyDialog); this.context = context; this.title = title; this.message = message; this.strPositive = strPositive; this.strNegative = strNegative; this.listener = listener; } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.dialog_custom); //alertDialog是否可以点击外围消失 setCanceledOnTouchOutside(cancelable); setCancelable(cancelable); tvTitle = findViewById(R.id.tv_dialog_title); tvMessage = findViewById(R.id.tvAlertDialogMessage); btnPositive = findViewById(R.id.tv_dialog_positive); btnNegative = findViewById(R.id.tv_dialog_negative); viewDeliver = findViewById(R.id.view_deliver); //如果title为空,则隐藏alertDialog标题 tvTitle.setVisibility(StringUtil.isNotEmpty(title, true) ? View.VISIBLE : View.GONE); tvTitle.setText("" + StringUtil.getCurrentString()); if (StringUtil.isNotEmpty(strPositive, true)) { btnPositive.setText(StringUtil.getCurrentString()); btnPositive.setOnClickListener(this); } else { btnPositive.setVisibility(View.GONE); viewDeliver.setVisibility(View.GONE); } if (StringUtil.isNotEmpty(strNegative, true)) { btnNegative.setText(StringUtil.getCurrentString()); btnNegative.setOnClickListener(this); } else { btnNegative.setVisibility(View.GONE); viewDeliver.setVisibility(View.GONE); } tvMessage.setText(StringUtil.getTrimedString(message)); final WindowManager.LayoutParams params = this.getWindow().getAttributes(); params.gravity = Gravity.CENTER; this.getWindow().setAttributes(params); // this.getWindow().setBackgroundDrawableResource(android.R.color.transparent); } @Override public void onClick(final View v) { if (v.getId() == R.id.tv_dialog_positive) { listener.onDialogButtonClick(true); } else if (v.getId() == R.id.tv_dialog_negative) { listener.onDialogButtonClick(false); } dismiss(); } /** * 自定义Dialog监听器 */ public interface OnDialogButtonClickListener { /** * 点击按钮事件的回调方法 * * @param isPositive */ void onDialogButtonClick(boolean isPositive); } }