Android AlertDialog包含EditText，软键盘不能弹出的解决方法

AlertDialog包含EditText，软键盘不能弹出的解决方法

[size=large]public static void editContentDialog(final Context context) {
		final AlertDialog dialog = new AlertDialog.Builder(context).create();
		LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
		RelativeLayout layout = (RelativeLayout)inflater.inflate(R.layout.define_dialog_2, null);
		dialog.setView(layout);
		dialog.show();
		Window window = dialog.getWindow();
		// *** 主要就是在这里实现这种效果的.
		window.setContentView(R.layout.define_dialog_2);
		
		RelativeLayout rlCancel = (RelativeLayout) window.findViewById(R.id.rl_left);
		RelativeLayout rlBoundPhone = (RelativeLayout) window
				.findViewById(R.id.rl_right);
		TextView tvTitle = (TextView) window.findViewById(R.id.tv_dialog_title);
		final EditText etContent = (EditText) window
				.findViewById(R.id.et_content);
		TextView tvLeft = (TextView) window.findViewById(R.id.tv_left);
		TextView tvRight = (TextView) window.findViewById(R.id.tv_right);

		tvTitle.setText("新建列表");
		tvTitle.setVisibility(View.VISIBLE);
		etContent.setTextSize(16.0f);
		tvLeft.setText("取消");
		tvRight.setText("保存");
		rlCancel.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				dialog.dismiss();
			}
		});

		rlBoundPhone.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				dialog.dismiss();
			}
		});
		dialog.setCanceledOnTouchOutside(true);// 设置点击屏幕Dialog不消失  
	}[/size]

define_dialog_2.xml
[size=large]

<?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" >

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="30dp"
        android:layout_marginRight="30dp"
        android:background="@drawable/corner_box_white_2" >
        
        <TextView
            android:id="@+id/tv_dialog_title"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp"
            android:gravity="center"
            android:textColor="@color/black"
            android:text="手机绑定"
            android:visibility="visible"
            android:textSize="20sp" />

        <!-- <TextView
            android:id="@+id/tv_dialog_content"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dp"
            android:layout_marginRight="10dp"
            android:layout_marginTop="10dp"
            android:layout_marginBottom="10dp"
            android:gravity="center"
            android:textColor="@color/black"
            android:layout_below="@id/tv_dialog_title"
            android:minHeight="40dp"
            android:text="法杰拉尔家乐福吉安网络服务了解放军阿拉维"
            android:textSize="20sp" /> -->
            <EditText 
                android:id="@+id/et_content"
                android:layout_width="match_parent"
            	android:layout_height="35dp"
            	android:layout_below="@id/tv_dialog_title"
            	android:layout_marginTop="15dp"
            	android:layout_marginLeft="10dp"
            	android:layout_marginRight="10dp"
            	android:singleLine="true"
            	android:ellipsize="end"
            	android:textColor="@color/black"
            	android:focusable="true"
            	android:focusableInTouchMode="true"
            	android:hint="请输入新列表名称"
            	android:gravity="center"
            	android:text="猎人"
            	android:background="@drawable/corner_box_white_90"
                />

        <View
            android:id="@+id/view_line"
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:layout_below="@id/et_content"
            android:layout_marginTop="15dp"
            android:background="@color/gray" />

        <View
            android:id="@+id/view_shuxian"
            android:layout_width="1dp"
            android:layout_height="45dp"
            android:layout_below="@id/view_line"
            android:layout_centerHorizontal="true" />

        <RelativeLayout
            android:id="@+id/rl_left"
            android:layout_width="match_parent"
            android:layout_height="45dp"
            android:layout_below="@id/view_line"
            android:layout_toLeftOf="@id/view_shuxian"
            android:background="@drawable/unicorn_left_bottom" >

            <TextView
                android:id="@+id/tv_left"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_centerInParent="true"
                android:gravity="center"
                android:textColor="@color/white"
                android:textSize="20sp" />
        </RelativeLayout>

        <RelativeLayout
            android:id="@+id/rl_right"
            android:layout_width="match_parent"
            android:layout_height="45dp"
            android:layout_below="@id/view_line"
            android:layout_toRightOf="@id/view_shuxian"
            android:background="@drawable/unicorn_right_bottom" >

            <TextView
                android:id="@+id/tv_right"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_centerInParent="true"
                android:gravity="center"
                android:textColor="@color/white"
                android:textSize="20sp" />
        </RelativeLayout>
    </RelativeLayout>

</RelativeLayout>

[/size]