我试图在android应用程序中打开默认的计算器应用程序。设备中安装了两个计算器:默认安卓计算器和。堆栈跟踪:
android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.MAINcat=[android.intent.category.LAUNCHER] sel=act=android.intent.
Toast.makeText(this, R.string.unrecognized_gesture, Toast.LENGTH_LONG).show();android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.MAIN dat=#Intent;action=android.intent.action.MAIN;cat
我正在从我的应用程序中调用android原生计算器,我如何从它获得结果数据。在完成计算后我按了back onActivityResult is not executing..帮帮我 i.setClassName("com.android.calculator2", startActivityForResult(i, 1)