试图从GitHub实施乡下。代码中没有错误，应用程序崩溃，很多logcat错误

https://stackoverflow.com//questions/20026563

21-12-2019
|

题

似乎我问了过去被问到的东西，但没有其他人设法得到答案，因此手指交叉。

我正在尝试实现。但是它似乎没有工作。我尝试了2种可能的方法来实现它（至少我认为有3个）。

第一个是在我的应用程序中添加乡本林代码在该实施示例文件夹代码（DIDNT工作）的顶部

第二个是以某种方式改变碎片切片代码活动（还没有尝试过）

第三个是将洪叶代码导入图书馆。我认为这是正确的方法，因此我列出了我的步骤已经完成了它的工作。

首先我创建了名为countypickerapp的新的android项目，并从该筹码存储库中找到的示例文件夹实现了代码。这是MainActivity.Class的代码：

 package com.example.countrypickerapp;
 import android.os.Bundle;
 import android.support.v4.app.FragmentActivity;
 import android.support.v4.app.FragmentManager;
 import android.support.v4.app.FragmentTransaction;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.MenuItem.OnMenuItemClickListener;
 import android.widget.Toast;

 import com.countrypicker.CountryPicker;
 import com.countrypicker.CountryPickerListener;

 public class MainActivity extends FragmentActivity {

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    FragmentManager manager = getSupportFragmentManager();
    FragmentTransaction transaction = manager.beginTransaction();

    CountryPicker picker = new CountryPicker();
    picker.setListener(new CountryPickerListener() {

        @Override
        public void onSelectCountry(String name, String code) {
            Toast.makeText(
                    MainActivity.this,
                    "Country Name: " + name + " - Code: " + code
                            + " - Currency: "
                            + CountryPicker.getCurrencyCode(code),
                    Toast.LENGTH_SHORT).show();
        }
    });

    transaction.replace(R.id.home, picker);

    transaction.commit();

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    MenuItem item = menu.findItem(R.id.show_dialog);
    item.setOnMenuItemClickListener(new OnMenuItemClickListener() {

        @Override
        public boolean onMenuItemClick(MenuItem item) {
            CountryPicker picker = CountryPicker.newInstance("Select Country");
            picker.setListener(new CountryPickerListener() {

                @Override
                public void onSelectCountry(String name, String code) {
                    Toast.makeText(
                            MainActivity.this,
                            "Country Name: " + name + " - Code: " + code
                                    + " - Currency: "
                                    + CountryPicker.getCurrencyCode(code),
                            Toast.LENGTH_SHORT).show();
                }
            });

            picker.show(getSupportFragmentManager(), "COUNTRY_PICKER");
            return false;
        }
    });
    return true;
}

}

这是androidmanifest.xml文件的代码

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.countrypickerapp"
 android:versionCode="1"
 android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="18" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
       android:name="com.example.countrypickerapp.Main1Activity"
        android:label="@string/app_name" android:parentActivityName="@string/title_activity_main1">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
       android:name="com.example.countrypickerapp.MainActivity"
       android:label="@string/title_activity_main1" >
    </activity>
</application>

</manifest>

必须将主要文件夹（opardyper）作为库导入，因此我遵循了这些步骤：

File->New->Other
Select Android Project
Select "Create Project from existing source"
Click "Browse..." button and navigate to johannilsson-android-actionbar\actionbar
Finish (Now action bar project in your workspace)
Right-click on your project -> Properties
In Android->Library section click Add
select recently added project -> Ok

以及logcat日志错误列表：

11-17 02:06:37.320: I/SurfaceTextureClient(9657): [STC::queueBuffer] this:0x4fa637f8, api:1, last queue time elapsed :5603 ms
11-17 02:06:37.321: I/SurfaceTextureClient(9657): [0x4fa637f8] frames:2, duration:5.603000, fps:0.356932
11-17 02:06:37.325: W/MMUMapper(9657): fail to register MVA, unsupported format(0x5)
11-17 02:06:37.413: W/ActionMenuPresenter(9657): showOverflowMenu fail, mReserveOverflow=true, mMenu.getNonActionItems().size()=1, isOverflowMenuShowing()=false
11-17 02:06:37.476: W/MMUMapper(9657): fail to register MVA, unsupported format(0x5)
11-17 02:06:37.490: W/MMUMapper(9657): fail to register MVA, unsupported format(0x5)
11-17 02:06:37.510: W/MMUMapper(9657): fail to register MVA, unsupported format(0x5)
11-17 02:06:38.094: W/MMUMapper(9657): invalid operation for unregister MVA with VA(0x52b85000) size(57344) f(0x5)
11-17 02:06:38.094: W/MMUMapper(9657): invalid operation for unregister MVA with VA(0x52cec000) size(57344) f(0x5)
11-17 02:06:38.095: W/MMUMapper(9657): invalid operation for unregister MVA with VA(0x52cfa000) size(57344) f(0x5)
11-17 02:06:38.102: W/InputEventReceiver(9657): Attempted to finish an input event but the input event receiver has already been disposed.
11-17 02:06:40.889: W/MMUMapper(9657): invalid operation for unregister MVA with VA(0x528cf000) size(614400) f(0x5)
11-17 02:06:40.890: W/MMUMapper(9657): invalid operation for unregister MVA with VA(0x52d6d000) size(614400) f(0x5)
11-17 02:06:40.890: W/MMUMapper(9657): invalid operation for unregister MVA with VA(0x52aa9000) size(614400) f(0x5)
11-17 02:10:40.214: E/Trace(10401): error opening trace file: No such file or directory (2)
11-17 02:10:40.316: W/dalvikvm(10401): Unable to resolve superclass of Lcom/example/countrypickerapp/MainActivity; (11)
11-17 02:10:40.316: W/dalvikvm(10401): Link of class 'Lcom/example/countrypickerapp/MainActivity;' failed
11-17 02:10:40.317: E/dalvikvm(10401): Could not find class 'com.example.countrypickerapp.MainActivity', referenced from method com.example.countrypickerapp.Main1Activity$1.onClick
11-17 02:10:40.317: W/dalvikvm(10401): VFY: unable to resolve const-class 57 (Lcom/example/countrypickerapp/MainActivity;) in Lcom/example/countrypickerapp/Main1Activity$1;
11-17 02:10:40.505: W/MMUMapper(10401): fail to register MVA, unsupported format(0x5)
11-17 02:10:40.615: W/MMUMapper(10401): fail to register MVA, unsupported format(0x5)
11-17 02:10:42.480: I/SurfaceTextureClient(10401): [0x4fa637f8] frames:2, duration:1.945000, fps:1.027828
11-17 02:10:42.499: W/MMUMapper(10401): fail to register MVA, unsupported format(0x5)
11-17 02:10:42.619: W/dalvikvm(10401): threadid=1: thread exiting with uncaught exception (group=0x41269908)
11-17 02:10:42.638: E/AndroidRuntime(10401): FATAL EXCEPTION: main
11-17 02:10:42.638: E/AndroidRuntime(10401): java.lang.NoClassDefFoundError: com.example.countrypickerapp.MainActivity
11-17 02:10:42.638: E/AndroidRuntime(10401): at com.example.countrypickerapp.Main1Activity$1.onClick(Main1Activity.java:22)
11-17 02:10:42.638: E/AndroidRuntime(10401): at android.view.View.performClick(View.java:4091)
11-17 02:10:42.638: E/AndroidRuntime(10401): at android.view.View$PerformClick.run(View.java:17072)
11-17 02:10:42.638: E/AndroidRuntime(10401): at android.os.Handler.handleCallback(Handler.java:615)
11-17 02:10:42.638: E/AndroidRuntime(10401): at android.os.Handler.dispatchMessage(Handler.java:92)
11-17 02:10:42.638: E/AndroidRuntime(10401): at android.os.Looper.loop(Looper.java:153)
11-17 02:10:42.638: E/AndroidRuntime(10401): at android.app.ActivityThread.main(ActivityThread.java:5037)
11-17 02:10:42.638: E/AndroidRuntime(10401): at java.lang.reflect.Method.invokeNative(Native Method)
11-17 02:10:42.638: E/AndroidRuntime(10401): at java.lang.reflect.Method.invoke(Method.java:511)
11-17 02:10:42.638: E/AndroidRuntime(10401): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:825)
11-17 02:10:42.638: E/AndroidRuntime(10401): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:588)
11-17 02:10:42.638: E/AndroidRuntime(10401): at dalvik.system.NativeStart.main(Native Method)

添加了一个名为mainActivity1的附加活动，该活动有一个按钮，当单击重定向时，该按钮将其单击到所实现的涌入时。

我希望我已经很好地解释了我的问题，并会得到解决方案，提示，提示或任何可能让我更接近地工作的东西。我知道我可以使用不同的方法从头开始重新实现它所从头开始，但我没有看到重新监视已经实施并上传的东西，除了学习新的课程。

解决方案

您的清单声明 main 1活动（添加空间以突出显示数字1），但您的类文件是MainActivity.java，没有1 !!:)

许可以下： CC-BY-SA 和归因

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