我正在使用谷歌地图,并且已经关注this教程。我已经在下面编写了我的代码。我在logcat中收到了无法找到类&com; google.android,gms的错误。 maps.supportfragment.Plz提前帮助我。谢谢。
package com.google.android.gms;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
public class MainActivity extends FragmentActivity {
SupportMapFragment mapFragment;
GoogleMap map;
final String TAG = "myLogs";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
map = mapFragment.getMap();
if (map == null) {
finish();
return;
}
init();
}
private void init() {
}
public void onClickTest(View view) {
map.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
}
}
这是Logcat:
11-14 12:24:21.506: I/dalvikvm(1383): Could not find method com.google.android.gms.maps.GoogleMap.setMapType, referenced from method com.google.android.gms.MainActivity.onClickTest
11-14 12:24:21.536: W/dalvikvm(1383): VFY: unable to resolve virtual method 4792: Lcom/google/android/gms/maps/GoogleMap;.setMapType (I)V
11-14 12:24:21.536: D/dalvikvm(1383): VFY: replacing opcode 0x6e at 0x0003
11-14 12:24:21.567: E/dalvikvm(1383): Could not find class 'com.google.android.gms.maps.SupportMapFragment', referenced from method com.google.android.gms.MainActivity.onCreate
11-14 12:24:21.576: W/dalvikvm(1383): VFY: unable to resolve check-cast 683 (Lcom/google/android/gms/maps/SupportMapFragment;) in Lcom/google/android/gms/MainActivity;
11-14 12:24:21.576: D/dalvikvm(1383): VFY: replacing opcode 0x1f at 0x0013
11-14 12:24:22.016: D/AndroidRuntime(1383): Shutting down VM
11-14 12:24:22.016: W/dalvikvm(1383): threadid=1: thread exiting with uncaught exception (group=0x414c4700)
11-14 12:24:22.046: E/AndroidRuntime(1383): FATAL EXCEPTION: main
11-14 12:24:22.046: E/AndroidRuntime(1383): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.google.android.gms/com.google.android.gms.MainActivity}: android.view.InflateException: Binary XML file line #15: Error inflating class fragment
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2211)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.app.ActivityThread.access$600(ActivityThread.java:141)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.os.Handler.dispatchMessage(Handler.java:99)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.os.Looper.loop(Looper.java:137)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.app.ActivityThread.main(ActivityThread.java:5103)
11-14 12:24:22.046: E/AndroidRuntime(1383): at java.lang.reflect.Method.invokeNative(Native Method)
11-14 12:24:22.046: E/AndroidRuntime(1383): at java.lang.reflect.Method.invoke(Method.java:525)
11-14 12:24:22.046: E/AndroidRuntime(1383): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
11-14 12:24:22.046: E/AndroidRuntime(1383): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
11-14 12:24:22.046: E/AndroidRuntime(1383): at dalvik.system.NativeStart.main(Native Method)
11-14 12:24:22.046: E/AndroidRuntime(1383): Caused by: android.view.InflateException: Binary XML file line #15: Error inflating class fragment
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
11-14 12:24:22.046: E/AndroidRuntime(1383): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:267)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.app.Activity.setContentView(Activity.java:1895)
11-14 12:24:22.046: E/AndroidRuntime(1383): at com.google.android.gms.MainActivity.onCreate(MainActivity.java:20)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.app.Activity.performCreate(Activity.java:5133)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
11-14 12:24:22.046: E/AndroidRuntime(1383): ... 11 more
11-14 12:24:22.046: E/AndroidRuntime(1383): Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment com.google.android.gms.maps.SupportMapFragment: make sure class name exists, is public, and has an empty constructor that is public
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.support.v4.app.Fragment.instantiate(Fragment.java:409)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.support.v4.app.Fragment.instantiate(Fragment.java:377)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:277)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)
11-14 12:24:22.046: E/AndroidRuntime(1383): ... 21 more
11-14 12:24:22.046: E/AndroidRuntime(1383): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.maps.SupportMapFragment" on path: DexPathList[[zip file "/data/app/com.google.android.gms-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.google.android.gms-2, /system/lib]]
11-14 12:24:22.046: E/AndroidRuntime(1383): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:53)
11-14 12:24:22.046: E/AndroidRuntime(1383): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
11-14 12:24:22.046: E/AndroidRuntime(1383): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
11-14 12:24:22.046: E/AndroidRuntime(1383): at android.support.v4.app.Fragment.instantiate(Fragment.java:399)
11-14 12:24:22.046: E/AndroidRuntime(1383): ... 24 more
这是我的xml文件
<?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="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<Button
android:id="@+id/btnTest"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="onClickTest"
android:text="test">
</Button>
<mapfragment
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent">
</mapfragment>
</LinearLayout>
答案 0 :(得分:0)
您还需要支持库,而不仅仅是播放服务库。 打开sdk管理器并下载它,然后将其包含在您的项目中。
你的mapfragment在xml中应该是这样的:
<fragment
class="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"/>