小编que*_*ion的帖子

我正在开发一个壁纸应用程序,我在其中显示图像ImageView作为启动画面.

现在我想将ImageView图像闪烁为闪屏.

这是我的启动画面代码:

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.Window;
import android.widget.ImageView;
import android.widget.Toast;

import com.android.volley.Request.Method;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;
import com.usd.amazingwallpapershd.app.AppConst;
import com.usd.amazingwallpapershd.app.AppController;
import com.usd.amazingwallpapershd.picasa.model.Category;

@SuppressLint("NewApi")
public class SplashActivity extends Activity {
    private static final String TAG = SplashActivity.class.getSimpleName();
    private static final String TAG_FEED = "feed", TAG_ENTRY = "entry",
            TAG_GPHOTO_ID = "gphoto$id", …

我在ImageView中显示全屏图像,我试图在ImageView的屏幕中心添加TextView,但TextView没有显示.

我试过了:

<?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:orientation="vertical" >

    <ImageView
        android:id="@+id/splash_imageview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:scaleType="centerCrop" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginBottom="20dip"
        android:background="#AA000000"
        android:padding="12dip"
        android:text="SomeText"
        android:textColor="#ffffffff" />

</LinearLayout>