I'm trying to program for that to happen, but only appears to the user to
define the application, which is a wallpaper.
Follows the line of code, what am I doing wrong?
package --------------
import android.content.res.Resources;
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 android.widget.Toast;
import com.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.InterstitialAd;
import java.io.IOException;
/**
* Created by N on 10/06/2016.
*/
public class ServicoWallpaper extends WallpaperService {
private InterstitialAd interstitial;
public static boolean previousPreview = false;
//chama o método que converte o gif em vídeo
//sobrescrece a engine com o método try
@Override
public WallpaperService.Engine onCreateEngine() {
try {
Movie movie = Movie.decodeStream(
getResources().getAssets().open("petals.gif"));
return new GIFWallpaperEngine(movie);
}catch(IOException e){
Log.d("GIF", "Não foi possível carregar a imagem");
return null;
}
}
//aqui começa o código que anima o gif
public class GIFWallpaperEngine extends WallpaperService.Engine {
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();
}
@Override
public void onCreate(SurfaceHolder surfaceHolder) {
super.onCreate(surfaceHolder);
this.holder = surfaceHolder;
}
//cria o objeto do tipo Runnable que chama o método draw
private Runnable drawGIF = new Runnable() {
public void run() {
draw();
}
};
//este método desenha o gif e o escala de acordo com o tamanho da tela
private void draw() {
if (visible) {
Canvas canvas = holder.lockCanvas();
canvas.save();
// Ajuste o tamanho e posição
// até a imagem ficar boa na tela do aparelho
// aqui é a escala da imagem em relação a resolução do aparelho
// 1f = tamanho normal do gif
canvas.scale((float)
(Resources.getSystem().getDisplayMetrics().widthPixels/(movie.width()*1.0)),
(float)
(Resources.getSystem().getDisplayMetrics().heightPixels/(movie.height()*1.0)));
//aqui é o alinhamento horizontal e vertical
//os valores podem ser positivos ex: -100, 0, +100
//o primeiro numero é o alinhamento horizontal
//o segundo numeor é o alinhamento vertical
movie.draw(canvas, 0, 0);
canvas.restore();
holder.unlockCanvasAndPost(canvas);
movie.setTime((int) (System.currentTimeMillis() %
movie.duration()));
handler.removeCallbacks(drawGIF);
handler.postDelayed(drawGIF, frameDuration);
}
}
//verifica se o plano de fundo está visível para mostrar/esconder o gif
@Override
public void onVisibilityChanged(boolean visible) {
System.out.println(isPreview()+ " "+visible);
if(!isPreview() && visible && previousPreview){
previousPreview =false;
interstitial = new InterstitialAd(getApplicationContext());
interstitial.setAdUnitId("ca-app-pub-5579648702298902/2848470655");
AdRequest adRequest = new AdRequest.Builder()
.build();
interstitial.setAdListener(new AdListener() {
public void onAdLoaded() {
if (interstitial.isLoaded()) {
interstitial.show();
}
}
@Override
public void onAdFailedToLoad(int errorCode) {
Toast.makeText(getApplicationContext(), "Ad failed to
load! error code: " + errorCode, Toast.LENGTH_SHORT).show();
}
});
interstitial.loadAd(adRequest);
Toast.makeText(getApplicationContext(), "set",
Toast.LENGTH_SHORT).show();
}
if(isPreview()){
previousPreview = true;
}else{
previousPreview = false;
}
this.visible = visible;
if (visible) {
handler.post(drawGIF);
} else {
handler.removeCallbacks(drawGIF);
}
}
}
}
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