android 学习资料 pdf ppt

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical"> <EditText android:id="@+id/editor" android:layout_width="fill_parent" android:layout_height="0dip" android:autoText="true" android:capitalize="sentences" android:layout_weight="1" android:freezesText="true" > <requestFocus /> </EditText> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:gravity="center_horizontal" android:orientation="horizontal" android:background="@drawable/semi_black"> <Button android:id="@+id/back" style="@style/ActionButton" android:text="@string/back" /> <ImageView android:id="@+id/image" android:layout_width="wrap_content" android:layout_height="wrap_content" android:paddingLeft="4dip" android_paddingRight="4dip" android:src="@drawable/violet" /> <Button android:id="@+id/clear" style="@style/ActionButton" android:text="@string/clear" android:textColor="@color/red" /> </LinearLayout> </LinearLayout>