Question

我需要在安装时从android平台的离子（3.9.2）项目中的文本文件中创建所有logcat行的文件。

在原生的android项目中，我们在Application类中写东西，但对于离子没有任何想法。

还为应用程序创建了自定义插件，是否可以从插件执行安装方法？

Answer 1

终于得到了解决方案。

从自定义插件中添加了自定义应用程序类，用于生成日志文件。

对于清单条目，修改plugin.xml以使所有工作正常工作。

我创建了应用程序类bellow，

public class CustomApplication extends Application{

private static final String TAG = "CustomApplication";

/**
 * Called when the application is starting, before any activity, service, or receiver objects (excluding content providers) have been created.
 */
public void onCreate() 
{
    Log.e(TAG, "from onCreate");
    super.onCreate();

    if (isExternalStorageWritable())
    {

        Log.e(TAG,"file path : " + this.getExternalFilesDir(null).getPath() + "/MyApp");

        File appDirectory = new File(this.getExternalFilesDir(null).getPath() + "/MyApp");
        File logDirectory = new File(appDirectory + "/log");
        File logFile = new File(logDirectory, "logcat" + ".txt");

        // create app folder
        if (!appDirectory.exists())
        {
            appDirectory.mkdir();
        }

        // create log folder
        if (!logDirectory.exists())
        {
            logDirectory.mkdir();
        }

        // clear the previous logcat and then write the new one to the file
        try
        {
            Process process = Runtime.getRuntime().exec("logcat -c");
            process = Runtime.getRuntime().exec("logcat -f " + logFile);
        } catch (IOException e)
        {
            e.printStackTrace();
        }

    } else if (isExternalStorageReadable())
    {
        Log.e(TAG,"only readable external storage");
        // only readable
    } else
    {
        Log.e(TAG,"not accessible external storage");
        // not accessible
    }
}

/* Checks if external storage is available for read and write */
public boolean isExternalStorageWritable()
{
    String state = Environment.getExternalStorageState();
    if ( Environment.MEDIA_MOUNTED.equals( state ) ) {
        return true;
    }
    return false;
}

/* Checks if external storage is available to at least read */
public boolean isExternalStorageReadable()
{
    String state = Environment.getExternalStorageState();
    if ( Environment.MEDIA_MOUNTED.equals( state ) ||
            Environment.MEDIA_MOUNTED_READ_ONLY.equals( state ) ) {
        return true;
    }
    return false;
}

}

Cordova插件对Application的plugin.xml文件修改如下，

<source-file src="src/android/CustomApplication.java" target-dir="src/com/MyApplication" />

<edit-config file="AndroidManifest.xml" target="/manifest/application" mode="merge">
    <application android:name="CustomApplication"/>
  </edit-config>

如何为日志生成android平台添加CustomApplication类？

1 个答案: