我正在尝试将工具栏集成到我现有的应用中。 Android Studio不显示任何错误，但应用程序不会工作。它闪烁了半秒左右，但随后在我的手机上显示了一个信息窗口，上面显示我的应用程序已关闭。 我做错了什么/有什么问题？
这是我的整个代码：
MapActivity.Java
package com.example.testingmapingmarker23;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import static com.example.testingmapingmarker23.R.id.map;
public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
private GoogleMap mMap;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(map);
mapFragment.getMapAsync(this);
final Toolbar customToolbar = (Toolbar) findViewById(R.id.toolbar);
}
/**
* Manipulates the map once available.
* This callback is triggered when the map is ready to be used.
* This is where we can add markers or lines, add listeners or move the camera. In this case,
* we just add a marker near Sydney, Australia.
* If Google Play services is not installed on the device, the user will be prompted to install
* it inside the SupportMapFragment. This method will only be triggered once the user has
* installed Google Play services and returned to the app.
*/
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
// Add a marker in Sydney and move the camera
LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
}
}
的build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion '25.0.0'
defaultConfig {
applicationId "com.example.testingmapingmarker23"
minSdkVersion 23
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
//compile 'com.android.support:appcompat-v7:24.2.1'
compile 'com.google.android.gms:play-services-maps:10.2.1'
compile 'com.android.support:design:25.3.1'
testCompile 'junit:junit:4.12'
compile "com.android.support:support-core-utils:25.4.0"
}
allprojects {
repositories {
jcenter()
maven{
url "https://maven.google.com"
}
}
}
我的设备是安装了Android 6.0.1和API 23的OnePlus One
使用更改的工具栏进行堆栈跟踪：
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.testingmapingmarker23, PID: 2905
Theme: themes:{default=overlay:com.cyngn.hexo, iconPack:system, fontPkg:com.cyngn.hexo, com.android.systemui=overlay:com.cyngn.hexo, com.android.systemui.navbar=overlay:com.cyngn.hexo}
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.testingmapingmarker23/com.example.testingmapingmarker23.MapsActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2450)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2510)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1363)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5461)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
at android.support.v7.app.AppCompatDelegateImplV9.createSubDecor(AppCompatDelegateImplV9.java:359)
at android.support.v7.app.AppCompatDelegateImplV9.ensureSubDecor(AppCompatDelegateImplV9.java:328)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:289)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.example.testingmapingmarker23.MapsActivity.onCreate(MapsActivity.java:35)
at android.app.Activity.performCreate(Activity.java:6251)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2403)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2510)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1363)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5461)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
答案 0 :(得分：2)
xml中有错误：
width存在拼写错误，请更改 android:layout_width="1080dp">
You must supply a layout_width attribute.您的堆栈跟踪指定：android:theme="@style/Theme.AppCompat.Light"
修改
根据您的新堆栈跟踪：
您需要使用Theme.AppCompat主题（或后代） 活性。
您需要将application添加到AndroidManifest.xml文件中的android:theme="@style/AppTheme"标记。
或
如果您在AndroidManifest.xml文件中有styles.xml，那么
使用<style name="AppTheme" parent="Theme.AppCompat.Light">
android:background="@mipmap/ic_launcher"
答案 1 :(得分：0)
为了显示您自己的AppBar / Toolbar
请将此代码复制到您的.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="1080dp"
android:layout_height="1920dp"
tools:context=".MainActivity">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="1720px"
tools:context="com.example.testingmapingmarker23.MapsActivity"
android:layout_gravity="top"/>
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
android:layout_gravity="bottom"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
</LinearLayout>
在Styles.xml中
不要提供任何行动栏
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
在MainActivity.java
public class MainActivity extends AppCompatActivity implements OnMapReadyCallback{
@Override
protected void onCreate(){
----
Toolbar customToolbar = (Toolbar) findViewById(R.id.toolbar);
getSupportActionbar.
setSupportActionBar(customToolbar);
}
}
这是您启用自定义AppBar的方式。