您好,我正在尝试实现一个简单的 Android 底部工作表,我使用的 xml 如下!
我的 XML
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Effects"
android:id="@+id/effects"
android:textStyle="italic"/>
<!--contains my layout for buttons, nested layout etc etc-->
</LinearLayout
<android.support.v4.widget.NestedScrollView
android:id="@+id/color_effects_bottom_sheet"
android:layout_width="match_parent"
android:layout_height="350dp"
android:clipToPadding="true"
app:behavior_hideable="true"
android:background="@android:color/holo_orange_light"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Please Set the Color Effects here!"
android:padding="16dp"
android:textSize="16sp"/>
</android.support.v4.widget.NestedScrollView>
此 XML 背后的代码如下
代码背后
公共类 MainActivity 扩展 Activity {
//Variables for bottom sheets calls
private Button btn_effects;
private BottomSheetBehavior mBottomSheetBehavior;
private CoordinatorLayout coordinatorLayout;
////////////////////////////////////
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//locate coordinator layout
coordinatorLayout=(CoordinatorLayout)findViewById(R.id.main_content);
//locate bottom sheet
View color_bottomSheet = coordinatorLayout.findViewById( R.id.color_effects_bottom_sheet);
//View scene_bottomSheet = coordinatorLayout.findViewById( R.id.scenes_bottom_sheet);
//effects button
btn_effects=(Button)findViewById(R.id.effects);
//scenes button
btn_scenes=(Button)findViewById(R.id.scenes);
//settings button
btn_settings=(Button)findViewById(R.id.settings);
//bottom sheet behavior
mBottomSheetBehavior = BottomSheetBehavior.from(color_bottomSheet);
//effects button listener
btn_effects.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
mBottomSheetBehavior.setState(BottomSheetBehavior.STATE_EXPANDED);
}
});
}
}
问题
问题是,当我尝试运行此代码时,它会使我的应用程序崩溃并一直抛出此异常。
例外
E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.bottomsheetexample, PID: 22875 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.bottomsheetexample/com.example.bottomsheetexample.MainActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class android.support.design.widget.CoordinatorLayout at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2417)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2469)
at android.app.ActivityThread.access$1100(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1362)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5551)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:914)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:730)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class android.support.design.widget.CoordinatorLayout
at android.view.LayoutInflater.createView(LayoutInflater.java:640)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:716)
at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
at android.view.LayoutInflater.inflate(LayoutInflater.java:409)
at android.view.LayoutInflater.inflate(LayoutInflater.java:358)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:305)
at android.app.Activity.setContentView(Activity.java:1959)
at com.example.junaidhassan.bottomsheetexample.MainActivity.onCreate(MainActivity.java:23)
at android.app.Activity.performCreate(Activity.java:5310)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2381)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2469)at android.app.ActivityThread.access$1100(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1362)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5551)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:914)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:730)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at android.view.LayoutInflater.createView(LayoutInflater.java:614)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:716)
at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
at android.view.LayoutInflater.inflate(LayoutInflater.java:409)
at android.view.LayoutInflater.inflate(LayoutInflater.java:358)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:305)
at android.app.Activity.setContentView(Activity.java:1959)
at com.example.bottomsheetexample.MainActivity.onCreate(MainActivity.java:23)
at android.app.Activity.performCreate(Activity.java:5310)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2381)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2469)at android.app.ActivityThread.access$1100(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1362)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5551)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:914)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:730)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalArgumentException: You need to use a Theme.AppCompat theme (or descendant) with the design library.
at android.support.design.widget.ThemeUtils.checkAppCompatTheme(ThemeUtils.java:34)
at android.support.design.widget.CoordinatorLayout.<init>(CoordinatorLayout.java:182)
at android.support.design.widget.CoordinatorLayout.<init>(CoordinatorLayout.java:176)
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at android.view.LayoutInflater.createView(LayoutInflater.java:614)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:716)
at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
at android.view.LayoutInflater.inflate(LayoutInflater.java:409)
at android.view.LayoutInflater.inflate(LayoutInflater.java:358)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:305)
at android.app.Activity.setContentView(Activity.java:1959)
at com.example.bottomsheetexample.MainActivity.onCreate(MainActivity.java:23)
at android.app.Activity.performCreate(Activity.java:5310)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2381)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2469)at android.app.ActivityThread.access$1100(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1362)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5551)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:914)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:730)
at dalvik.system.NativeStart.main(Native Method)
需要
基本上我是第一次尝试实现底部表。我想添加多个底页以了解如何在应用程序中使用它们。
我的活动是具有以下应用程序主题的全屏活动
android:theme="@android:style/Theme.DeviceDefault.NoActionBar.Fullscreen">
我想使用全屏活动并想在按钮单击侦听器上实现多个底部工作表!