如何使用android studio创建平板电脑背景

问题描述

我一直在关注本教程： Page。我遇到了很多错误。您可以通过共享GitHub上的代码来帮助我吗？您也可以在Stack Overflow上发布答案。这是我的Gif 我已经在我的java文件中使用了它：

@H_404_6@

package com.example.background;
import android.graphics.Canvas;
import android.graphics.Movie;
import android.os.Handler;
import android.service.wallpaper.WallpaperService;
import android.util.Log;
import android.view.SurfaceHolder;

import java.io.IOException;


public class GIFWallpaperEngine extends WallpaperService{
private final int frameDuration = 20;

private SurfaceHolder holder;
private Movie movie;
private boolean visible;
private Handler handler;

public GIFWallpaperEngine(Movie movie) {
    this.movie = movie;
    handler = new Handler();
}



public void onCreate(SurfaceHolder surfaceHolder) {
    super.onCreate(surfaceHolder);
    this.holder = surfaceHolder;
}

private Runnable drawGIF = new Runnable() {
    public void run() {
        draw();
    }
};

private void draw() {
    if (visible) {
        Canvas canvas = holder.lockCanvas();
        canvas.save();
        // Adjust size and position so that
        // the image looks good on your screen
        canvas.scale(3f,3f);
        movie.draw(canvas,-100,0);
        canvas.restore();
        holder.unlockCanvasAndPost(canvas);
        movie.setTime((int) (System.currentTimeMillis() % movie.duration()));

        handler.removeCallbacks(drawGIF);
        handler.postDelayed(drawGIF,frameDuration);
    }
}
@Override
public void onVisibilityChanged(boolean visible) {
    this.visible = visible;
    if (visible) {
        handler.post(drawGIF);
    } else {
        handler.removeCallbacks(drawGIF);
    }
}
@Override
public void onDestroy() {
    super.onDestroy();
    handler.removeCallbacks(drawGIF);
}
@Override
public Engine onCreateEngine() {
    try {
        Movie movie = Movie.decodeStream(
                getResources().getAssets().open("wolverine.gif"));

        return new Engine(movie);
    }catch(IOException e){
        Log.d("GIF","Could not load asset");
        return null;
    }
}
}

是否存在任何错误，因为覆盖显示错误。就是这样：不需要重写，因为方法无论super都执行。

解决方法

好吧，这是我的解决方法GitLink

解决方案，当您尝试运行应用程序时，先单击app和Edit Configurations

现在，在Launch Options中选择没有：

最后一步，按OK：

最后，您可以运行您的应用了。试试吧！

android android background tablet