我有壁纸服务我在服务中写了一个Http post请求代码（新主题），但我无法从中获得结果我在postman（chrome）上测试我的url和其他我可以获得响应但是在这里，我甚至不知道它是否正常工作请帮忙看看我的代码（请帮我看看吐司或系统的响应或.....）
这是我的http发布请求。
public static String HttpParoonakRequestGetUrl(){
URL url ;
HttpURLConnection client = null;
try {
url = new URL("my url");
client = (HttpURLConnection) url.openConnection();
client.setRequestMethod("POST");
client.setRequestProperty("method","get_random_wallpaper");
client.setUseCaches (false);
client.setDoInput(true);
client.setDoOutput(true);
DataOutputStream wr = new DataOutputStream (
client.getOutputStream ());
wr.flush ();
wr.close ();
//Get Response
InputStream is = client.getInputStream();
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
String line;
StringBuffer response = new StringBuffer();
while((line = rd.readLine()) != null) {
response.append(line);
response.append('\n');
}
rd.close();
Log.d("hey",response.toString());
return response.toString();
} catch (Exception e) {
e.printStackTrace();
e.getMessage();
return null;
}
finally {
if(client != null) // Make sure the connection is not null.
client.disconnect();
}
}
我的服务
public class MainActivity extends WallpaperService {
@Override
public Engine onCreateEngine() {
return new WallpaperEngine();
}
class WallpaperEngine extends Engine {
//Duration between slides in milliseconds
private final int SLIDE_DURATION = 2000;
private int[] mImagesArray;
private int mImagesArrayIndex = 0;
private Thread mDrawWallpaper,thread;
public WallpaperEngine() {
mImagesArray = new int[] {R.drawable.garden1,R.drawable.garden2,R.drawable.garden3,R.drawable.garden4,R.drawable.girl1,
R.drawable.girl2,R.drawable.greenww,R.drawable.sports1,R.drawable.sports2,R.drawable.sports3,R.drawable.sports4};
mDrawWallpaper = new Thread(new Runnable() {
@Override
public void run() {
try {
while (true) {
drawFrame();
incrementCounter();
Thread.sleep(SLIDE_DURATION);
}
} catch (Exception e) {
e.printStackTrace();
e.getMessage();
}
}
});
thread = new Thread(new Runnable() {
@Override
public void run() {
try {
String a = HttpParoonakRequest.HttpParoonakRequestGetUrl();
System.out.println("Message1 "+ a);
Toast.makeText(getApplicationContext(),a,Toast.LENGTH_LONG).show();
} catch (Exception e) {
e.printStackTrace();
e.getMessage();
}
}
});
thread.start();
mDrawWallpaper.start();
}
private void incrementCounter() {
mImagesArrayIndex++;
if (mImagesArrayIndex >= mImagesArray.length) {
mImagesArrayIndex = 0;
}
}
private void drawFrame() {
final SurfaceHolder holder = getSurfaceHolder();
Canvas canvas = null;
try {
canvas = holder.lockCanvas();
if (canvas != null) {
drawImage(canvas);
}
} finally {
if (canvas != null) {
holder.unlockCanvasAndPost(canvas);
}
}
}
private void drawImage(Canvas canvas)
{
Bitmap image = BitmapFactory.decodeResource(getResources(),
mImagesArray[mImagesArrayIndex]);
Bitmap b=Bitmap.createScaledBitmap(image, canvas.getWidth(), canvas.getHeight(), true);
canvas.drawBitmap(b, 0,0, null);
}
}
当然我在清单中使用权限互联网