1、布局中引入SettingViewModel,并在圖檔的布局AppCompatImageView中采用 app:imageResourceDrawable="@{viewModel.oneIcon}" 和 TextView 文本 android:text="@{viewModel.dropBoxSign ? @string/setting_cloud_sign_out : @string/setting_cloud_sign_in }"
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<data>
<variable
name="viewModel"
type="cn.wps.pdf.document.settings.SettingViewModel"/>
</data>
<LinearLayout
android:paddingLeft="@dimen/user_info_pid_margin_size"
android:paddingRight="@dimen/user_info_pid_margin_size"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<View
style="@style/line_style_h"
android:layout_marginLeft="@dimen/pdf_setting_main_padding_l_r"
android:layout_marginStart="@dimen/pdf_setting_main_padding_l_r" />
<LinearLayout
android:onClick="@{viewModel.onOneDriveSign}"
android:id="@+id/one_drive_sign_out"
android:gravity="center_vertical"
android:layout_width="match_parent"
android:layout_height="@dimen/home_about_item_height"
android:orientation="horizontal">
<TextView
android:layout_weight="1"
android:textColor="@color/text_color"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="OneDrive" />
<android.support.v7.widget.AppCompatImageView
android:id="@+id/one_drive_icon_sign"
app:imageResourceDrawable="@{viewModel.oneIcon}"
android:layout_width="30dp"
android:layout_height="wrap_content" />
</LinearLayout>
<View
style="@style/line_style_h"
android:layout_marginLeft="@dimen/pdf_setting_main_padding_l_r"
android:layout_marginStart="@dimen/pdf_setting_main_padding_l_r" />
<RelativeLayout
android:id="@+id/drop_dox_sign_layout"
android:layout_width="match_parent"
android:layout_height="66dp"
android:background="@drawable/touch_bg_rectangle"
android:onClick="@{viewModel.onDropBoxSignClick}"
android:orientation="vertical"
android:paddingTop="@dimen/pdf_setting_main_padding_t_b"
android:paddingBottom="@dimen/pdf_setting_main_padding_t_b">
<TextView
android:id="@+id/drop_dox_sign"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="16dp"
android:text="@{viewModel.dropBoxSign ? @string/setting_cloud_sign_out : @string/setting_cloud_sign_in }"
android:textColor="#ff2291f9"
android:textSize="13sp" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ellipsize="end"
android:singleLine="true"
android:text="@string/public_documents_drop_box_title"
android:textColor="@color/text_color"
android:textSize="16sp" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="1dp"
android:ellipsize="end"
android:singleLine="true"
android:text="[email protected]"
android:textColor="@color/public_theme_gray"
android:textSize="12sp"
android:visibility="gone" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>
</layout>
2、SettingViewModel 中定義這兩個類型的變量 并調用
public ObservableField<Drawable> oneIcon = new ObservableField<>();
oneIcon.set(getActivity().getResources().getDrawable(R.drawable.oauth_out));
oneIcon.set(getActivity().getResources().getDrawable(R.drawable.oauth_sign));
public ObservableField<Boolean> dropBoxSign = new ObservableField<>();
mViewModel.dropBoxSign.set(true); // false