fanfou(饭否） android客户端 代码学习1
16lz
2021-01-23
LoginActivity.class类
Intent intent = getIntent().getParcelableExtra(Intent.EXTRA_INTENT); String action = intent.getAction(); if (intent.getAction() == null || !Intent.ACTION_SEND.equals(action)) { intent = new Intent(this, TwitterActivity.class); } getIntent().getParcelableExtra(String activityname).. 从intent中检索继承的数据
Intent.EXTRA_INTENT intent里面传递的类名
// 发送消息给widget Intent reflogin = new Intent(this.getBaseContext(), FanfouWidget.class);reflogin.setActio("android.appwidget.action.APPWIDGET_UPDATE"); PendingIntent l = PendingIntent.getBroadcast(this.getBaseContext(), 0, reflogin, PendingIntent.FLAG_UPDATE_CURRENT); try { l.send(); } catch... Intent和PendingIntent的区别
ApplicationContext 和Context的区别
从线程的角度考虑，更多的用applicationContext,但是在用到spinner时候出现uncaught exception
LayoutInflater layoutInflater = LayoutInflater.from(this.getBaseContext());// beneath param will brought uncaught problem// LayoutInflater layoutInflater = LayoutInflater.from(this.getApplicationContext()); View view = ContactViewer.mLayoutInflater.inflate(R.layout.aViewContainingASpinner, theParentView, false); Spinner spinner = (Spinner) view.findViewById(R.id.theSpinnerId); String[] myStringArray = new String[] {"sweet","love"}; // managing adapter part // The context used here don't have any importance -- both work. ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource( this.getApplicationContext(), myStringArray, android.R.layout.simple_spinner_item); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinner.setAdapter(adapter); theParentView.addView(view); the baseContext is required when dealing with contextMenu in your Activity...
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