我想做的是从服务器获取文件。相同的代码正在使用 sdcard 运行 f9，但是当我从整个线程获取文件时，我在 logcat 中收到以下错误。
我的代码如下：
public class Map extends Activity
{
//
private GraphicsView mGLView;
//private GisGLRenderer m_GisRenderer;
final static String RESULT_KEY="result";
final static int REQ_CODE=1001;
AlertDialog m=null;
public class LoadFile extends AsyncTask<String,String,String>
{
ProgressDialog Asycdialog = new ProgressDialog(Map.this);
@Override
protected void onPreExecute() {
//set message of the dialog
Asycdialog.setMessage("Loading File");
Asycdialog.setButton(DialogInterface.BUTTON_NEGATIVE,"Cancel",new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
//To change body of implemented methods use File | Settings | File Templates.
}
});
//show dialog
Asycdialog.show();
super.onPreExecute();
}
protected void onProgressUpdate(String ... progress)
{
}
protected String doInBackground(String ... Params)
{
Map.this.mGLView.LoadProjectFile(AppFuncs.g_path);
Map.this.mGLView.requestRender();
return null;
}
protected void onPostExecute(String result)
{
Asycdialog.dismiss();
super.onPostExecute(result);
}
}
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map);
mGLView = (GraphicsView) findViewById(R.id.glview);
}
public void bt_Open(View v)
{
AlertDialog.Builder builder=new AlertDialog.Builder(this);
builder.setTitle("Load File");
builder.setMessage("Choose an option to load file")
.setCancelable(false)
.setNegativeButton("Server",new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog,int which)
{
Intent i= new Intent(Map.this,serv.class);
startActivityForResult(i,REQ_CODE);
}
}
)
.setPositiveButton("SDcard",new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
Intent i= new Intent(Map.this,FileChooser.class);
startActivityForResult(i,REQ_CODE);
}
}
);
final AlertDialog a=builder.create();
a.show();
}
protected void onActivityResult(int requestCode, int resultCode,Intent data)
{
//super.onActivityResult(requestCode,resultCode,data);
if(requestCode==REQ_CODE)
{
if(resultCode==RESULT_OK && data.getExtras().containsKey(RESULT_KEY))
{
// Toast.makeText(this,data.getExtras().getString(RESULT_KEY),Toast.LENGTH_SHORT).show();
// this.mGLView.m_SelectedProjectPath = AppFuncs.path;
LoadFile f= new LoadFile();
f.execute("");
// this.mGLView.LoadProjectFile(AppFuncs.path);
}
}
}
ERROR/WindowManager(20040): Activity idtech.ESDN.Map has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@416a97b0 that was originally added here
android.view.WindowLeaked: Activity idtech.ESDN.Map has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@416a97b0 that was originally added here
at android.view.ViewRootImpl.<init>(ViewRootImpl.java:380)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:292)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:224)
at
android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:149)
at android.view.Window$LocalWindowManager.addView(Window.java:547)
at android.app.Dialog.show(Dialog.java:277)
at idtech.ESDN.Map$LoadFile.onPreExecute(Map.java:59)
at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586)
at android.os.AsyncTask.execute(AsyncTask.java:534)
at idtech.ESDN.Map.onActivityResult(Map.java:221)
at android.app.Activity.dispatchActivityResult(Activity.java:5194)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3180)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3227)
at android.app.ActivityThread.access$1100(ActivityThread.java:137)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1258)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4838)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:608)
at dalvik.system.NativeStart.main(Native Method)
发生这种情况的原因是：
你试图展示一个Dialog退出活动后。
解决方案 ：
To call dismiss() on the Dialog您在退出之前创建的Activity，例如在 onPause() 中。离开之前应关闭所有窗口和对话框Activity.
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