Android 常用代码整理：Android 常用弹窗整理

说明：大部分内容都是参考别的文章，这里做整理是为了以后的编程有实用的模板，可以即需即用。

一、自定义 UI 的 Dialog

代码：

private void showDialog() { final Dialog dialog = new Dialog(this, R.style.NormalDialogStyle); View view = View.inflate(this, R.layout.dialog_custom, null); WindowManager.LayoutParams lp = dialog.getWindow().getAttributes(); lp.width = WindowManager.LayoutParams.WRAP_CONTENT; lp.height = WindowManager.LayoutParams.WRAP_CONTENT; lp.gravity = Gravity.CENTER; dialog.setContentView(view, lp); // 设置点击对话框外部是否关闭对话框 dialog.setCanceledOnTouchOutside(true); Button cancel = (Button) view.findViewById(R.id.bt_cancel); Button confirm = (Button) view.findViewById(R.id.bt_confirm); cancel.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { dialog.dismiss(); } }); confirm.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { dialog.dismiss(); } }); dialog.show(); }

styles.xml：

<!-- dialog 对话框的样式 --> <style name="NormalDialogStyle"> <!-- 对话框背景 --> <item name="android:windowBackground">@android:color/transparent</item> <!-- 边框 --> <item name="android:windowFrame">@null</item> <!-- 没有标题 --> <item name="android:windowNoTitle">true</item> <!-- 是否浮现在 Activity 之上 --> <item name="android:windowIsFloating">true</item> <!-- 背景透明 --> <item name="android:windowIsTranslucent">false</item> <!-- 是否有覆盖 --> <item name="android:windowContentOverlay">@null</item> <!-- 进出的显示动画 --> <!--<item name="android:windowAnimationStyle">@style/normalDialogAnim</item>--> <!-- 背景变暗 --> <item name="android:backgroundDimEnabled">true</item> </style>

布局文件：

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/bg_solid_r4_ffffff"> <ImageView android:id="@+id/iv_icon" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_marginTop="22dp" android:src="@mipmap/ic_launcher" /> <TextView android:id="@+id/tv_tip" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/iv_icon" android:layout_centerHorizontal="true" android:layout_marginTop="13dp" android:text="提示内容" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@id/tv_tip" android:layout_marginBottom="20dp" android:layout_marginTop="20dp" android:gravity="center"> <Button android:id="@+id/bt_cancel" android:layout_width="100dp" android:layout_height="35dp" android:layout_marginRight="12dp" android:background="@drawable/bg_solid_r4_959595" android:text="@string/common_return" android:textColor="@color/white" android:textSize="16dp" /> <Button android:id="@+id/bt_confirm" android:layout_width="100dp" android:layout_height="35dp" android:layout_marginLeft="12dp" android:background="@drawable/bg_solid_r4_e52848" android:text="@string/common_confirm" android:textColor="@color/white" android:textSize="16dp" /> </LinearLayout> </RelativeLayout>

二、加载中 Dialog

// BaseActivity.class private Dialog mLoadingDialog; protected void showLoadingDialog() { if (mLoadingDialog == null) { mLoadingDialog = new Dialog(this, R.style.NormalDialogStyle); View view = LayoutInflater.from(this).inflate(R.layout.dialog_loading, null); WindowManager.LayoutParams lp = mLoadingDialog.getWindow().getAttributes(); lp.width = WindowManager.LayoutParams.WRAP_CONTENT; lp.height = WindowManager.LayoutParams.WRAP_CONTENT; lp.gravity = Gravity.CENTER; mLoadingDialog.setContentView(view, lp); mLoadingDialog.setCanceledOnTouchOutside(false); mLoadingDialog.show(); } else { mLoadingDialog.show(); } } protected void hideLoadingDialog() { if (mLoadingDialog != null) { mLoadingDialog.dismiss(); } } <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="20dp"> <ProgressBar android:id="@+id/more_progress" style="?android:attr/progressBarStyleInverse" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:indeterminateDuration="1500" /> <TextView android:id="@+id/tv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/more_progress" android:layout_centerHorizontal="true" android:gravity="bottom|center_horizontal" android:text="加载中..." android:textSize="12sp" android:visibility="gone" /> </RelativeLayout>

三、列表选择框 AlertDialog

private void showStationDialog() { final String[] items = new String[]{"选项一", "选项二", "选项三", "选项四", "选项五"}; AlertDialog dialog = new AlertDialog.Builder(this) .setItems(items, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { mTvSelect.setText(items[which]); } }).create(); dialog.show(); }

四、定点弹窗 PopupWindow

private void showDeletePop(View v) { View view = LayoutInflater.from(mContext).inflate(R.layout.pop_delete, null, false); TextView tvDelete = (TextView) view.findViewById(R.id.tv_delete); final PopupWindow popupWindow = new PopupWindow(view, ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT, true); // 设置加载动画 // popupWindow.setAnimationStyle(R.anim.xxx); // 点击非 PopupWindow区域时使 PopupWindow消失，如果为 false，无论按多少次后退键 PopupWindow都不会关闭，而且退不出程序 popupWindow.setTouchable(true); // 要为 popupWindow设置一个背景才有效 popupWindow.setBackgroundDrawable(new ColorDrawable(0x00000000)); // 设置 popupWindow显示的位置，参数依次是参照 View，x轴的偏移量，y轴的偏移量 popupWindow.showAsDropDown(v, 50, -100); tvDelete.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { popupWindow.dismiss(); ... ... } }); } <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@mipmap/bg_msg"> <TextView android:id="@+id/tv_delete" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="10dp" android:text="删除" /> </LinearLayout>

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参考文章： 1、https://blog.csdn.net/a_zhon/article/details/54578047 2、http://www.runoob.com/w3cnote/android-tutorial-popupwindow.html