Question

我想通过Android 5.0中的应用程序打开设置屏幕，即Lollipop。当我使用下面提到的代码时，app崩溃了：

Intent mSettingIntent = new Intent(Settings.ACTION_SETTINGS);
mSettingIntent.addCategory(Intent.CATEGORY_LAUNCHER);
startActivity(mSettingIntent);

logcat的：

01-21 17:28:39.110: E/AndroidRuntime(13210): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.settings.SETTINGS cat=[android.intent.category.LAUNCHER] }
01-21 17:28:39.110: E/AndroidRuntime(13210):    at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1771)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at android.app.Instrumentation.execStartActivity(Instrumentation.java:1491)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at android.app.Activity.startActivityForResult(Activity.java:3769)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at android.app.Activity.startActivityForResult(Activity.java:3730)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at android.app.Activity.startActivity(Activity.java:4040)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at android.app.Activity.startActivity(Activity.java:4008)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at com.example.settingoption.MainActivity$1.onClick(MainActivity.java:28)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at android.view.View.performClick(View.java:4802)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at android.view.View$PerformClick.run(View.java:20101)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at android.os.Handler.handleCallback(Handler.java:810)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at android.os.Handler.dispatchMessage(Handler.java:99)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at android.os.Looper.loop(Looper.java:189)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at android.app.ActivityThread.main(ActivityThread.java:5532)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at java.lang.reflect.Method.invoke(Native Method)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at java.lang.reflect.Method.invoke(Method.java:372)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:950)
01-21 17:28:39.110: E/AndroidRuntime(13210):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:745)

Answer 1

试试这个，

startActivityForResult(new Intent(android.provider.Settings.ACTION_SETTINGS), 0);

Answer 2

如果您只是想打开＆＃34;设置＆＃34;应用程序然后尝试folling：

startActivity(new Intent(Settings.ACTION_SETTINGS));

Android：如何在android lollipop中打开设置屏幕

2 个答案: