Android借助Application重写App的Crash(简易版)

原文：http://blog.csdn.net/lfdfhl/article/details/9714443

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 {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);init();}//Crashprivate void init(){System.out.println((9727/0)+"");}}

CrashApplication如下:

package cn.testcrash;import android.app.Application;public class CrashApplication extends Application {@Overridepublic 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 */@Overridepublic 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() {@Overridepublic 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;} }

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>

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