1、工具类：Logutils\ToastUtil;

yangtianci · yangtianci · commit 978586533294 · 2020-04-17T18:30:15.000+08:00
2、子线程拦截提示
diff --git a/app/src/main/java/com/aiyang/android_crashx/MainActivity.java b/app/src/main/java/com/aiyang/android_crashx/MainActivity.java
@@ -11,13 +11,19 @@ public class MainActivity extends AppCompatActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
-
-
-
     }
 
     public void clickNullPointerException(View view) {
 
        throw new NullPointerException();
     }
+
+    public void clickIndexOutOfBoundsException(View view) {
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                throw new IndexOutOfBoundsException();
+            }
+        }).start();
+    }
 }
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
@@ -15,32 +15,33 @@
         <LinearLayout
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-            android:paddingTop="30dp"
             android:gravity="center_horizontal"
             android:orientation="vertical">
 
 
             <TextView
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
+                android:padding="10dp"
                 android:background="@color/gray"
                 android:text="——————java 崩溃"/>
             <Button
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:text="（主线程）空指针异常"
+                android:layout_marginTop="30dp"
                 android:background="@color/colorPrimary"
                 android:textColor="@color/white"
                 android:onClick="clickNullPointerException" />
 
             <Button
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:text="子线程"
+                android:text="（子线程) 数组越界异常"
                 android:layout_marginTop="30dp"
                 android:background="@color/colorPrimary"
                 android:textColor="@color/white"
-                android:onClick="clickNullPointerException" />
+                android:onClick="clickIndexOutOfBoundsException" />
 
 
             <TextView
diff --git a/crashx/src/main/java/com/aiyang/crashx/CrashX.java b/crashx/src/main/java/com/aiyang/crashx/CrashX.java
@@ -3,20 +3,24 @@
 import android.content.Context;
 
 import com.aiyang.crashx.init.RealCrash;
+import com.aiyang.crashx.inter.ICrash;
 
 public final class CrashX{
 
-    private static  RealCrash rCrash;
+    private static ICrash rCrash;
 
 
     public static void install(Context mContext) {
+        //实例一次，安装一次
         if (rCrash==null){
-            rCrash = new RealCrash();
+            rCrash = new RealCrash(mContext);
+            rCrash.setUncaughtCrash();
         }
-        rCrash.setUncaughtCrash(mContext);
     }
 
-    //扩展功能：设置正式环境、debug环境
-    public static void setDebug(){}
+    //扩展功能：设置正式环境、debug环境功能提示不同
+    public static void setDebug(){
+
+    }
 
 }
diff --git a/crashx/src/main/java/com/aiyang/crashx/init/KeepLoop.java b/crashx/src/main/java/com/aiyang/crashx/init/KeepLoop.java
@@ -0,0 +1,62 @@
+package com.aiyang.crashx.init;
+
+import android.content.Context;
+import android.os.Looper;
+
+import com.aiyang.crashx.R;
+import com.aiyang.crashx.inter.IKeepLoop;
+import com.aiyang.crashx.util.LogUtils;
+import com.aiyang.crashx.util.ToastUtil;
+
+/**
+ * @author aiyang
+ */
+public final class KeepLoop implements IKeepLoop {
+
+    /**
+     * 是否已轮询
+     */
+    private static boolean isWhile = true;
+
+    private static KeepLoop mInstance;
+
+    public static synchronized KeepLoop getInstance(){
+        if (mInstance ==null){
+            mInstance =  new KeepLoop();
+        }
+        return  mInstance;
+    }
+
+    /**
+     * 主线程或子线程抛出异常后，迫使主线程Looper持续loop()
+     */
+    @Override
+    public void keepLoop(final Context mContext,Thread t) {
+        if (t == Looper.getMainLooper().getThread()){
+            if (isWhile){
+                isWhile = false;
+                ToastUtil.show(mContext,mContext.getString(R.string.crash_tip2));
+                while (true) {
+                    try {
+                        Looper.loop();
+                    } catch (Throwable e) {
+                        //再次出错，打印错误并提示，接着死循环，再次拉起loop
+                        e.printStackTrace();
+                        ToastUtil.show(mContext,mContext.getString(R.string.crash_over));
+                    }
+                }
+            }
+        }else{
+            LogUtils.d(mContext.getString(R.string.crash_tip1));
+            new Thread() {
+                @Override
+                public void run() {
+                    Looper.prepare();
+                    ToastUtil.show(mContext,mContext.getString(R.string.crash_tip1));
+                    Looper.loop();
+                }
+            }.start();
+
+        }
+    }
+}
diff --git a/crashx/src/main/java/com/aiyang/crashx/init/RealCrash.java b/crashx/src/main/java/com/aiyang/crashx/init/RealCrash.java
@@ -1,23 +1,35 @@
 package com.aiyang.crashx.init;
 
 import android.content.Context;
+import android.os.Handler;
 import android.os.Looper;
-import android.util.Log;
-import android.widget.Toast;
 
+import com.aiyang.crashx.R;
 import com.aiyang.crashx.inter.ICrash;
+import com.aiyang.crashx.util.LogUtils;
+import com.aiyang.crashx.util.ToastUtil;
 
+/**
+ * @author aiyang
+ */
 public class RealCrash implements Thread.UncaughtExceptionHandler, ICrash {
 
-
     private Context mContext;
 
     private Thread.UncaughtExceptionHandler mDefaultCaughtExceptionHandler;
 
+    private  KeepLoop keepLoop;
 
-    public void setUncaughtCrash(Context mContext) {
+    public RealCrash(Context mContext) {
         this.mContext = mContext;
+        keepLoop = KeepLoop.getInstance();
+    }
 
+    /**
+     * 拦截系统异常捕获器
+     */
+    @Override
+    public void setUncaughtCrash() {
         //获取默认的系统异常捕获器
         if (mDefaultCaughtExceptionHandler == null){
             mDefaultCaughtExceptionHandler = Thread.getDefaultUncaughtExceptionHandler();
@@ -30,40 +42,30 @@ public void setUncaughtCrash(Context mContext) {
 
     @Override
     public void uncaughtException(Thread thread, Throwable throwable) {
-        Log.d("aaa",thread.getName()+"线程");
+        LogUtils.d("出现异常："+thread.toString());
         if (!handleException(throwable) && mDefaultCaughtExceptionHandler != null) {
             //如果无法拦截处理，则让系统默认的异常处理器来处理
             mDefaultCaughtExceptionHandler.uncaughtException(thread, throwable);
 
-            //重启应用
-            Log.d("aaa","handleException: 异常未拦截,待重启");
+            //建议重启应用
+            ToastUtil.show(mContext,mContext.getString(R.string.carsh_noway));
+        }else{
+            keepLoop.keepLoop(mContext,thread);
         }
-
     }
 
     /**
-     * 自定义错误处理
-     * @return true:处理了该异常; 否则返回false
+     * 错误处理检测
+     * @return true:可以拦截该异常; 否则返回false
      */
     @Override
     public boolean handleException(Throwable ex) {
         if (ex == null) {
             return false;
         }
-        final String msg = ex.getLocalizedMessage();
-        if (msg == null) {
-            return false;
-        }
-        Log.d("aaa","handleException: 异常被拦截,待处理");
-//        //使用Toast来显示异常信息
-//        new Thread() {
-//            @Override
-//            public void run() {
-//                Looper.prepare();
-//                Toast.makeText(mContext, "异常被拦截,待处理", Toast.LENGTH_LONG).show();
-//                Looper.loop();
-//            }
-//        }.start();
+        String msg = ex.toString();
+
+        LogUtils.d("异常允许被拦截："+msg);
         return true;
     }
 
diff --git a/crashx/src/main/java/com/aiyang/crashx/inter/ICrash.java b/crashx/src/main/java/com/aiyang/crashx/inter/ICrash.java
@@ -1,9 +1,15 @@
 package com.aiyang.crashx.inter;
 
 public interface ICrash {
+
+    /**
+     * 拦截异常捕获
+     */
+    void setUncaughtCrash();
     /**
-     * 自定义错误处理
-     * @return true:处理了该异常; 否则返回false
+     * 错误处理检测
+     * @return true:可以处理该异常; 否则返回false
      */
     boolean handleException(Throwable ex);
+
 }
diff --git a/crashx/src/main/java/com/aiyang/crashx/inter/IKeepLoop.java b/crashx/src/main/java/com/aiyang/crashx/inter/IKeepLoop.java
@@ -0,0 +1,10 @@
+package com.aiyang.crashx.inter;
+
+import android.content.Context;
+
+public interface IKeepLoop {
+    /**
+     * 主线程或子线程抛出异常后，迫使主线程Looper持续loop()
+     */
+    void  keepLoop(Context mContext,Thread t);
+}
diff --git a/crashx/src/main/java/com/aiyang/crashx/util/LogUtils.java b/crashx/src/main/java/com/aiyang/crashx/util/LogUtils.java
diff --git a/crashx/src/main/java/com/aiyang/crashx/util/ToastUtil.java b/crashx/src/main/java/com/aiyang/crashx/util/ToastUtil.java
diff --git a/crashx/src/main/res/values/strings.xml b/crashx/src/main/res/values/strings.xml
