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>相关代码
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();}});