Android uses Application to rewrite the crash (simple version) of the app)

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

Mainactivity is as follows:

Package CN. testcrash; import android. app. activity; import android. OS. bundle;/*** demo Description: * use application to customize crash ** references: * 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 is as follows:

Package CN. testcrash; import android. app. application; public class crashapplication extends application {@ overridepublic void oncreate () {super. oncreate (); crashhandler = crashhandler. getinstance (); // specifies the handler crashhandler for Crash. setcrashhandler (getapplicationcontext ());}}

Crashhandler is as follows:

Package cn. testcrash; import java. lang. thread. uncaughtExceptionHandler; import android. content. context; import android. OS. logoff; import android. widget. toast; public class CrashHandler implements UncaughtExceptionHandler {private Context mContext; private static CrashHandler mCrashHandler = new CrashHandler (); public static CrashHandler getInstance () {return mCrashHandler ;} /*** set the default handler that suddenly terminates when the thread does not capture exceptions. */Public void setCrashHandler (Context context) {mContext = context; Thread. setDefaultUncaughtExceptionHandler (this);}/*** call this method when a Crash occurs */@ Overridepublic void uncaughtException (Thread thread, Throwable throwable) {// Save the error log to the SD card Utils. saveInfoToSDCard (mContext, throwable); // displays the Crash information showCrashTipToast (); try {Thread. sleep (3000);} catch (Exception e) {}// exit the application 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 (); logoff. loop ();}}). start ();}}

Utils is as follows:

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 () is as follows: "+" \ n "+ stringBuilder. toString ();/*** the remaining logic is omitted */}/*** get the basic information of the device and the App */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 is as follows:

<?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>