自定义对话框

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="@color/red"    android:orientation="vertical" >    <EditText        android:id="@+id/yaoqingcontent"        android:layout_width="300dp"        android:layout_height="150dp"        android:background="@color/un_see"        android:gravity="left"        android:hint="请输入邀请内容"        android:lines="5"        android:padding="10dp" /></LinearLayout>

注意.里面的子控件一定要设置高度宽度..不然会根据位置跟着输入的文字大小

 <style name="Theme_Transparent" parent="@android:Theme.DeviceDefault.Light.Dialog">
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowNoTitle">true</item>
    </style>

样式

public void search() {// 邀请对方竞价Builderdialog = new AlertDialog.Builder(this,R.style.Theme_Transparent);LayoutInflater inflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);LinearLayout layout = (LinearLayout) inflater.inflate(R.layout.dailinput, null);dialog.setView(layout);yaoqingcontent = (EditText) layout.findViewById(R.id.yaoqingcontent);dialog.setPositiveButton("确认邀请", new DialogInterface.OnClickListener() {public void onClick(final DialogInterface dialog, int which) {//--------邀请对方的输入内容String key1 = "FromUID";String key2 = "ToUID";String key3 = "Content";String value1 = AESUtils.Encrypt(MyApp.getSP(context).getString("UUID", "0"), Web.TOKEN);// 当前用户idString vlaue2 = AESUtils.Encrypt(uID, Web.TOKEN);// 邀请对方的idString value3 = yaoqingcontent.getText().toString().trim();if (yaoqingcontent.getText().toString().trim().equals("")) {Toast.makeText(context, "请输入邀请内容", 0).show();} else {MyApp.getXHttpUtils(Web.KsbInvite, key1, value1, key2, vlaue2, key3, value3,new RequestCallBack<String>() {@Overridepublic void onFailure(HttpException arg0, String string) {Toast.makeText(context, "邀请失败!", 0).show();}@Overridepublic void onSuccess(ResponseInfo<String> info) {Toast.makeText(context, "邀请成功", 0).show();}});}}});dialog.setNegativeButton("取消邀请", new DialogInterface.OnClickListener() {public void onClick(DialogInterface dialog, int which) {dialog.dismiss();}});dialog.show();}