android app首次进入的时候进行提醒操作

布局文件。外层用RelativeLayout 最后使用一张图片 并且android:keepScreenOn="true"

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >

<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@+id/mycouponlisttoplayout"
android:background="@color/loginbgcolor"
android:orientation="vertical" >

<LinearLayout
android:id="@+id/loadingmycouponLayout"
android:layout_width="fill_parent"
android:layout_height="30dp"
android:background="@color/loginbgcolor"
android:gravity="center"
android:orientation="horizontal" >

<ImageView
android:id="@+id/mycouponfootprogress"
style="?android:progressBarStyleSmallInverse"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:background="@drawable/spinner_small"
android:contentDescription="@string/contentdesption"
android:indeterminateBehavior="repeat" />

<TextView
android:id="@+id/mycouponTipMsg"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="left|center"
android:padding="3.0px"
android:text="@string/Loading"
android:textColor="#ff000000" />
</LinearLayout>

<com.ejoy.customcontrol.XListView
android:id="@+id/mycouponusalist"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/loginbgcolor"
android:cacheColorHint="#00000000"
android:scrollbars="none" >
</com.ejoy.customcontrol.XListView>
</LinearLayout>

<RelativeLayout
android:id="@+id/mycouponlisttoplayout"
android:layout_width="match_parent"
android:layout_height="48dp"
android:background="@color/black" >

<TextView
android:id="@+id/txtMyCouponTitle"
style="@style/TopBarTextStyle"
android:text="@string/mycentermyCoupon" />

<Button
android:id="@+id/mycoupondetails_normal_Btnreturn"
style="@style/TopBtnReturnStyle"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true" />
</RelativeLayout>

<ImageView
android:id="@+id/mycouponhelpTip"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentBottom="true"
android:contentDescription="@string/contentdesption"
android:keepScreenOn="true"
android:scaleType="fitXY"
android:src="@drawable/mycoupontip" />

</RelativeLayout>

helpImageView = (ImageView) findViewById(R.id.mycouponhelpTip);
SharedPreferences sharedata = getSharedPreferences("fristrun", 0);
Boolean isSoupon = sharedata.getBoolean("isSoupon", true);
if (isSoupon) {
helpImageView.setVisibility(View.VISIBLE);
} else {
helpImageView.setVisibility(View.GONE);
}
helpImageView.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
helpImageView.setVisibility(View.GONE);
Editor sharedata = getSharedPreferences("fristrun", 0).edit();
sharedata.putBoolean("isSoupon", false);
sharedata.commit();
}
});