cc.metapro.openct.utils.CrashHandler.java Source code

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Here is the source code for cc.metapro.openct.utils.CrashHandler.java

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package cc.metapro.openct.utils;

/*
 *  Copyright 2016 - 2017 OpenCT open source class table
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import android.Manifest;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Environment;
import android.os.Looper;
import android.support.v4.content.ContextCompat;
import android.util.Log;
import android.widget.Toast;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;

import cc.metapro.openct.OpenCT;
import cc.metapro.openct.R;

public class CrashHandler implements Thread.UncaughtExceptionHandler {

    private static final String TAG = "OpenCT";
    private static final String FILE_NAME = "openct-crash.txt";
    private Thread.UncaughtExceptionHandler mDefaultHandler;
    private OpenCT mContext;

    private CrashHandler() {
    }

    public static CrashHandler initInstance(OpenCT context) {
        CrashHandler handler = new CrashHandler();
        handler.init(context);
        return handler;
    }

    private void init(OpenCT context) {
        mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
        Thread.setDefaultUncaughtExceptionHandler(this);
        mContext = context;
    }

    @Override
    public void uncaughtException(Thread thread, final Throwable ex) {
        if (ContextCompat.checkSelfPermission(mContext,
                Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
            try {
                dumpExceptionToSDCard(ex);
                if (mDefaultHandler != null) {
                    mDefaultHandler.uncaughtException(thread, ex);
                }
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        Looper.prepare();
                        Toast.makeText(mContext, R.string.crash_pop, Toast.LENGTH_LONG).show();
                        Looper.loop();
                    }
                }).start();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    private void dumpExceptionToSDCard(Throwable ex) throws IOException {
        if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
            Log.w(TAG, "sdcard unmounted,skip dump exception");
        }

        File file = new File(Environment.getExternalStorageDirectory(), FILE_NAME);
        try {
            PrintWriter pw = new PrintWriter(new BufferedWriter(new FileWriter(file)));
            pw.println(new Date().toString());
            dumpPhoneInfo(pw);
            pw.println();
            ex.printStackTrace(pw);

            pw.close();
        } catch (Exception e) {
            Log.e(TAG, "dump crash info failed");
        }
    }

    private void dumpPhoneInfo(PrintWriter pw) throws PackageManager.NameNotFoundException {
        PackageManager pm = mContext.getPackageManager();
        PackageInfo pi = pm.getPackageInfo(mContext.getPackageName(), PackageManager.GET_ACTIVITIES);
        pw.print("OpenCT Version: ");
        pw.print(pi.versionName);
        pw.print("_");
        pw.println(pi.versionCode);

        pw.print("OS Version: ");
        pw.print(Build.VERSION.RELEASE);
        pw.print("_");
        pw.println(Build.VERSION.SDK_INT);

        pw.print("Vendor: ");
        pw.println(Build.MANUFACTURER);

        pw.print("Model: ");
        pw.println(Build.MODEL);
    }

}