小编Ali*_*Ali的帖子

自Android O起,com.android.launcher.action.INSTALL_SHORTCUT不推荐使用.在之前的版本中,我使用了它并且它有效.

Intent shortcutintent = new Intent("com.android.launcher.action.INSTALL_SHORTCUT");
shortcutintent.putExtra("duplicate", false);
shortcutintent.putExtra(Intent.EXTRA_SHORTCUT_NAME, getString(R.string.app_name));
Parcelable icon = Intent.ShortcutIconResource.fromContext(getApplicationContext(), R.mipmap.ic_launcher);
shortcutintent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, icon);
shortcutintent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, new Intent(getApplicationContext(), MainActivity.class));
sendBroadcast(shortcutintent);

但现在这不再起作用了.没有创建主屏幕快捷方式.如何在Android O中创建主屏幕快捷方式？在源代码中它说@deprecated Replaced with {@link android.content.pm.ShortcutManager#createShortcutResultIntent}.所以我尝试了这个:

ShortcutManager shortcutManager = getSystemService(ShortcutManager.class);
ShortcutInfo.Builder mShortcutInfo = new ShortcutInfo.Builder(MainActivity.this, getString(R.string.app_name));
mShortcutInfo.setShortLabel(getString(R.string.app_name));
mShortcutInfo.setLongLabel(getString(R.string.app_name));
mShortcutInfo.setIcon(Icon.createWithResource(MainActivity.this, R.mipmap.ic_launcher));
shortcutManager.createShortcutResultIntent(mShortcutInfo.build());

我收到错误,必须提供快捷方式:

10-17 23:08:00.305 13256-13256/com.audiorecorder.wel.voicerecorder E/AndroidRuntime: FATAL EXCEPTION: main
                                                                                 Process: com.wel.shortcut, PID: 13256
                                                                                 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.wel.shortcut/com.wel.shortcut.MainActivity}: java.lang.NullPointerException: Shortcut Intent must be provided
                                                                                     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2817)
                                                                                     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)
                                                                                     at android.app.ActivityThread.-wrap11(Unknown Source:0)
                                                                                     at …

我正在ViewPager内的TabLayout上设置高程，但根本没有显示。我在stackoverflow上尝试了很多答案，但无法解决问题。在CoordinatorLayout中设置android：clipToPadding =“ false”也无法解决问题。任何帮助，将不胜感激。这是我正在使用的布局的xml，但现在正在提升高度：

 <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <View
        android:id="@+id/statusBarBackground"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
        android:clipToPadding="false" >

        <ScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:clipToPadding="false" >

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

    </ScrollView>

        <android.support.design.widget.TabLayout
            android:id="@+id/tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:tabMode="fixed"
            app:tabGravity="fill"
            app:elevation="3dp" />

    </android.support.design.widget.AppBarLayout>

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="android.support.design.widget.AppBarLayout$ScrollingViewBehavior" />

</android.support.design.widget.CoordinatorLayout>