Android借助Application重写App的Crash(简易版)
MainActivity如下:
package cn.testcrash; import android.app.Activity; import android.os.Bundle; /** * Demo描述: * 借助于Application自定义Crash * * 参考资料: * 1 http://blog.csdn.net/xiaanming/article/details/9344703 * 2 http://blog.csdn.net/itachi85/article/details/9102021 */ public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); init(); } //Crash private void init(){ System.out.println((9727/0)+""); } }
CrashApplication如下:
package cn.testcrash; import android.app.Application; public class CrashApplication extends Application { @Override public void onCreate() { super.onCreate(); CrashHandler crashHandler=CrashHandler.getInstance(); //指定Crash时的处理程序 crashHandler.setCrashHandler(getApplicationContext()); } }
CrashHandler如下:
package cn.testcrash; import java.lang.Thread.UncaughtExceptionHandler; import android.content.Context; import android.os.Looper; import android.widget.Toast; public class CrashHandler implements UncaughtExceptionHandler { private Context mContext; private static CrashHandler mCrashHandler=new CrashHandler(); public static CrashHandler getInstance(){ return mCrashHandler; } /** * 设置当线程由于未捕获到异常而突然终止的默认处理程序。 */ public void setCrashHandler(Context context){ mContext=context; Thread.setDefaultUncaughtExceptionHandler(this); } /** * 当发生Crash时调用该方法 */ @Override public void uncaughtException(Thread thread, Throwable throwable) { //保存错误日志到SD卡 Utils.saveInfoToSDCard(mContext, throwable); //提示Crash信息 showCrashTipToast(); try { Thread.sleep(3000); } catch (Exception e) { } //退出应用 System.exit(0); } private void showCrashTipToast() { new Thread(new Runnable() { @Override public void run() { Looper.prepare(); Toast.makeText(mContext, "I am very sorry", Toast.LENGTH_LONG).show(); Looper.loop(); } }).start(); } }
Utils如下:
package cn.testcrash; import java.text.SimpleDateFormat; import java.util.Date; import java.util.HashMap; import java.util.Map; import java.util.TimeZone; import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.os.Build; public class Utils { public static void saveInfoToSDCard(Context context, Throwable throwable) { HashMap<String, String> hashMap=getBaseInfo(context); StringBuilder stringBuilder=new StringBuilder(); for(Map.Entry<String, String> entry:hashMap.entrySet()){ String key=entry.getKey(); String value=entry.getValue(); stringBuilder.append(key).append("=").append(value).append("\n"); } System.out.println("stringBuilder.toString()如下:"+"\n"+stringBuilder.toString()); /** * 其余逻辑省略 */ } /** * 获取设备及该App的基本信息 */ public static HashMap<String, String> getBaseInfo(Context context){ HashMap<String, String> hashMap = new HashMap<String, String>(); PackageManager packageManager = context.getPackageManager(); PackageInfo packageInfo = null; try { packageInfo = packageManager.getPackageInfo(context.getPackageName(), PackageManager.GET_ACTIVITIES); } catch (NameNotFoundException e) { e.printStackTrace(); } hashMap.put("versionName", packageInfo.versionName); hashMap.put("versionCode", packageInfo.versionCode+""); hashMap.put("MODEL", Build.MODEL+""); hashMap.put("SDK_INT",Build.VERSION.SDK_INT+""); hashMap.put("RELEASE",Build.VERSION.RELEASE+""); hashMap.put("PRODUCT",Build.PRODUCT+""); return hashMap; } private String getCurrentTime(){ String currentTime=""; long currentTimeMillis=System.currentTimeMillis(); System.setProperty("user.timezone", "Asia/Shanghai"); TimeZone timeZone = TimeZone.getTimeZone("Asia/Shanghai"); TimeZone.setDefault(timeZone); SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss"); Date currentDate=new Date(currentTimeMillis); currentTime = simpleDateFormat.format(currentDate); System.out.println("currentTime="+currentTime); return currentTime; } }
main.xml如下:
<RelativeLayout 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" > <TextView android:id="@+id/textView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="自定义Crash" android:layout_centerInParent="true" android:textSize="28sp" /> </RelativeLayout>
AndroidManifest.xml如下:
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="cn.testcrash" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="8" /> <application android:name="cn.testcrash.CrashApplication" android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name="cn.testcrash.MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>