Code our life 日日行,不怕千万里;时时学,不怕千万卷

14八/100

Life Circle of Android Activity

从Hello Android 书中截来的图。比较完整的Activity生命周期.

24七/100

android中添加menu

1.定义menu.xml资源文件

<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@+id/settings"
android:title="@string/settings_label"
android:alphabeticShortcut="@string/settings_shortcut"></item>
</menu>

<menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+id/settings" android:title="@string/settings_label" android:alphabeticShortcut="@string/settings_shortcut"></item></menu>
2.在activity的onCreateOptionsMenu中inflate menu

MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu)

3.在acitvity的onOptionsItemsSelected中添加事件

switch ( item.getItemId() ) {
    case //...
}<span style="font-family: Georgia, 'Times New Roman', 'Bitstream Charter', Times, serif; font-size: small;"><span style="line-height: 19px; white-space: normal;">
</span></span>