android如何实现自定义Dialog弹框和背景阴影显示效果

import android.app.Dialog; import android.content.Context; import android.os.Bundle; import android.view.View; import android.view.ViewGroup; import android.view.WindowManager; import android.widget.Button; import android.widget.TextView; import com.zhiziyun.dmptest.bot.R; /** * Created by Administrator on 2018/1/31. */ public class CustomDialog extends Dialog { private Button yes, no;//确定按钮 private TextView titleTv;//消息标题文本 private TextView messageTv;//消息提示文本 private String titleStr;//从外界设置的title文本 private String messageStr;//从外界设置的消息文本 //确定文本和取消文本的显示内容 private String yesStr, noStr; private onNoOnclickListener noOnclickListener;//取消按钮被点击了的监听器 private onYesOnclickListener yesOnclickListener;//确定按钮被点击了的监听器 /** * 设置取消按钮的显示内容和监听 * * @param str * @param onNoOnclickListener */ public void setNoOnclickListener(String str, onNoOnclickListener onNoOnclickListener) { if (str != null) { noStr = str; } this.noOnclickListener = onNoOnclickListener; } /** * 设置确定按钮的显示内容和监听 * * @param str * @param onYesOnclickListener */ public void setYesOnclickListener(String str, onYesOnclickListener onYesOnclickListener) { if (str != null) { yesStr = str; } this.yesOnclickListener = onYesOnclickListener; } public CustomDialog(Context context) { super(context, R.style.Dialog_Msg); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.dialog_custom); //按空白处不能取消动画 setCanceledOnTouchOutside(false); //初始化界面控件 initView(); //初始化界面数据 initData(); //初始化界面控件的事件 initEvent(); } /** * 初始化界面的确定和取消监听器 */ private void initEvent() { //设置确定按钮被点击后，向外界提供监听 yes.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (yesOnclickListener != null) { yesOnclickListener.onYesClick(); } } }); no.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (noOnclickListener != null) { noOnclickListener.onNoClick(); } } }); } /** * 初始化界面控件的显示数据 */ private void initData() { //如果用户自定了title和message if (titleStr != null) { titleTv.setText(titleStr); } if (messageStr != null) { messageTv.setText(messageStr); } //如果设置按钮的文字 if (yesStr != null) { yes.setText(yesStr); } } /** * 初始化界面控件 */ private void initView() { yes = (Button) findViewById(R.id.yes); no = (Button) findViewById(R.id.no); titleTv = (TextView) findViewById(R.id.title); messageTv = (TextView) findViewById(R.id.message); } /** * 从外界Activity为Dialog设置标题 * * @param title */ public void setTitle(String title) { titleStr = title; } /** * 从外界Activity为Dialog设置dialog的message * * @param message */ public void setMessage(String message) { messageStr = message; } /** * 设置确定按钮和取消被点击的接口 */ public interface onYesOnclickListener { public void onYesClick(); } public interface onNoOnclickListener { public void onNoClick(); } @Override public void show() { super.show(); /** * 设置宽度全屏，要设置在show的后面 */ WindowManager.LayoutParams layoutParams = getWindow().getAttributes(); layoutParams.width= ViewGroup.LayoutParams.MATCH_PARENT; layoutParams.height= ViewGroup.LayoutParams.MATCH_PARENT; getWindow().getDecorView().setPadding(0, 0, 0, 0); getWindow().setAttributes(layoutParams); } }

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#A5000000"> <LinearLayout android:layout_width="260dp" android:layout_height="wrap_content" android:layout_centerInParent="true" android:background="@drawable/shape_dialog_msg" android:orientation="vertical"> <TextView android:id="@+id/title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:layout_margin="15dp" android:gravity="center" android:text="消息提示" android:textColor="@color/colorBlack" android:textSize="@dimen/title_text_size" /> <TextView android:id="@+id/message" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:layout_marginLeft="@dimen/padding_left_right4" android:layout_marginRight="@dimen/padding_left_right4" android:text="提示消息" android:textColor="@color/colorBlack" android:textSize="@dimen/textsizi3" /> <View android:layout_width="match_parent" android:layout_height="1px" android:layout_marginTop="15dp" android:background="#E4E4E4" /> <LinearLayout android:layout_width="match_parent" android:layout_height="@dimen/buttom_height" android:orientation="horizontal"> <Button android:id="@+id/no" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:background="@null" android:gravity="center" android:singleLine="true" android:text="取消" android:textColor="@color/blue" android:textSize="@dimen/textsizi3" /> <Button android:id="@+id/yes" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" android:background="@null" android:gravity="center" android:singleLine="true" android:text="确定" android:textColor="@color/red" android:textSize="@dimen/textsizi3" /> </LinearLayout> </LinearLayout> </RelativeLayout>

<?xml version="1.0" encoding="UTF-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_pressed="false"> <shape android:shape="rectangle" >  <solid android:color="#f7f6f6"></solid>   <corners android:radius="8dip" />  <padding android:bottom="2dp" android:left="2dp" android:right="2dp" android:top="2dp" /> </shape> </item> </selector>

//点击弹出对话框 final CustomDialog customDialog = new CustomDialog(getActivity()); customDialog.setTitle("消息提示"); customDialog.setMessage("是否暂停广告投放？"); customDialog.setYesOnclickListener("确定", new CustomDialog.onYesOnclickListener() { @Override public void onYesClick() { //这里是确定的逻辑代码，别忘了点击确定后关闭对话框 customDialog.dismiss(); } }); customDialog.setNoOnclickListener("取消", new CustomDialog.onNoOnclickListener() { @Override public void onNoClick() { customDialog.dismiss(); } }); customDialog.show();

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