Android 自定义AlertDialog 去黑边终极解决方案（亲测有效！）

View view = View.inflate(context, R.layout.dialog_common, null);

mDialog = new AlertDialog.Builder(context).create();

mDialog.setView(view);

mDialog.show();

<?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="wrap_content"

    android:background="@drawable/shape_dialog_white"

    android:orientation="vertical" >

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginBottom="35dp"

        android:layout_marginTop="35dp"

        android:gravity="center" >

        <TextView

            android:id="@+id/dialog_tv_content"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="@string/dialog_edit_wall_title"

            android:textColor="@android:color/black"

            android:textSize="19sp" />

    </LinearLayout>

    <View

        android:layout_width="match_parent"

        android:layout_height="1dp"

        android:background="@color/app_color" />

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:gravity="center" >

        <TextView

            android:id="@+id/dialog_tv_left"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginBottom="12dp"

            android:layout_marginTop="12dp"

            android:layout_weight="1"

            android:gravity="center"

            android:text="@string/dialog_edit_wall_secede"

            android:textColor="@android:color/black" />

        <TextView

            android:id="@+id/dialog_tv_right"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_marginBottom="12dp"

            android:layout_marginTop="12dp"

            android:layout_weight="1"

            android:gravity="center"

            android:text="@string/dialog_new_reply_cancel"

            android:textColor="@color/app_color" />

    </LinearLayout>

</LinearLayout>

mDialog.setView(view);

mDialog.setView(view,0,0,0,0);

    <!-- styles.xml on API 14+ devices -->

    <style name="SampleTheme.Light" parent="android:Theme.Holo.Light.DarkActionBar">

        <item name="android:windowNoTitle">true</item>

    </style>

   <activity android:name="com.kesar.ui.MainActivity"

             android:theme="@style/SampleTheme.Light"/>