[英]Android Studio Java runnable not running
我不知道為什么,但是我的跑步機無法正常工作。 我對編程非常陌生。 請幫我。
@Override
public void onCreate() {
Toast.makeText(ApplicationContextProvider.getContext(), "Service Template", Toast.LENGTH_SHORT).show();
handler = new Handler();
runnable = new Runnable() {
public void run() {
Toast.makeText(ApplicationContextProvider.getContext(), "Runnable", Toast.LENGTH_LONG).show();
Calendar calendar = Calendar.getInstance();
int day = calendar.get(Calendar.DAY_OF_WEEK);
if (day == Calendar.WEDNESDAY){
Toast.makeText(ApplicationContextProvider.getContext(), "Wednesday", Toast.LENGTH_LONG).show();
WindowManager.LayoutParams params = new WindowManager.LayoutParams(WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY, WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE, PixelFormat.TRANSLUCENT);
params.gravity = Gravity.TOP | Gravity.LEFT;
params.x = 0;
params.y = 0;
params.width = 0;
params.height = 0;
WindowManager windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
LinearLayout view = new LinearLayout(context);
view.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT));
WebView wv = new WebView(context);
String newUA= "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.4) Gecko/20100101 Firefox/4.0";
wv.getSettings().setJavaScriptEnabled(true);
wv.getSettings().setUserAgentString(newUA);
wv.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));
view.addView(wv);
wv.loadUrl(url1);
wv.setWebViewClient(new HelloWebViewClient());
windowManager.addView(view, params);
}
handler.postDelayed(runnable, 1000*5);
}
};
}
如您所見,我設置了一個Toast,讓我知道可運行對象何時運行。 顯示服務模板的Toast出現了,但是可運行的Toast卻沒有出現。
在該課程之前的主課程中,我使用了很多共享的首選項,但我不知道這是否可能是問題的原因。 當我按下按鈕進入該課程時,我的logCat也不會更改。
當我關閉應用程序時,我的logcat會寫: W/IInputConnectionWrapper: showStatusIcon on inactive InputConnection
我正在嘗試制作一個網絡機器人。
請幫我。
您的postDelay位置錯誤。 嘗試將其移動到運行之外。 像這樣
@Override public void onCreate() {
Toast.makeText(ApplicationContextProvider.getContext(), "Service Template", Toast.LENGTH_SHORT).show();
handler = new Handler();
runnable = new Runnable() {
public void run() {
Toast.makeText(ApplicationContextProvider.getContext(), "Runnable", Toast.LENGTH_LONG).show();
Calendar calendar = Calendar.getInstance();
int day = calendar.get(Calendar.DAY_OF_WEEK);
if (day == Calendar.WEDNESDAY){
Toast.makeText(ApplicationContextProvider.getContext(), "Wednesday", Toast.LENGTH_LONG).show();
WindowManager.LayoutParams params = new WindowManager.LayoutParams(WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY, WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE, PixelFormat.TRANSLUCENT);
params.gravity = Gravity.TOP | Gravity.LEFT;
params.x = 0;
params.y = 0;
params.width = 0;
params.height = 0;
WindowManager windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
LinearLayout view = new LinearLayout(context);
view.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT));
WebView wv = new WebView(context);
String newUA= "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.4) Gecko/20100101 Firefox/4.0";
wv.getSettings().setJavaScriptEnabled(true);
wv.getSettings().setUserAgentString(newUA);
wv.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));
view.addView(wv);
wv.loadUrl(url1);
wv.setWebViewClient(new HelloWebViewClient());
windowManager.addView(view, params);
}
}
};
handler.postDelayed(runnable, 1000*5);}
這將不會運行,因為您永遠不會運行它
您正在調用handler.postDelayed(runnable, 1000*5);
在永遠不會運行的運行方法中。
移動handler.postDelayed(runnable, 1000*5);
外部run()
方法
編輯:
使用handler.postDelayed(runnable, 1000*5);
可以使用run()
方法來遞歸運行runnable。但是需要首先啟動它。
問題是您實際上從未將處理程序發布到消息隊列中。 您的運行方法是正確的。 假設您處於活動狀態,則將處理程序發布在onPostResume方法中。
@Override
protected void onPostResume() {
super.onPostResume();
...
handler.post(runnable);
...
}
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