Android 如何避免运行时奔溃

奔溃问题

android运行的时候难免会有一些空指针(NullPointerException)或者下标越界(IndexOutOfBoundsException),用户使用的过程操作某一个按钮的时候,就发生了崩溃.导致app直接闪退,降低用户体验,因此导致用户流失

1.在项目根目录的build.gradle文件中添加

allprojects {
    repositories {
        maven { url 'https://dl.bintray.com/xuuhaoo/maven/'}
    }
}

2. 在项目的build.gradle文件中添加依赖包

1	`implementation` `'com.tonystark.android:defense_crash:2.0.0'`

3.在项目的Application中初始化操作

DefenseCrash.initialize();
      
DefenseCrash.install(this);

4.在项目的Application中实现 implements IExceptionHandler 接口

public class MyApp extends Application implements IExceptionHandler {
    @Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(base);
        // step1: Initialize the lib.
        DefenseCrash.initialize();
        // setp2: Install the fire wall defense.
        DefenseCrash.install(this);
    }
 
    @Override
    public void onCaughtException(Thread thread, Throwable throwable, boolean isSafeMode) {
        // step3: Print the error when crashed during runtime.
        throwable.printStackTrace();
        // step4: Upload this throwable to your crash collection sdk.
    }
 
    @Override
    public void onMayBeBlackScreen(Throwable throwable) {
        // onLayout(),onMeasure() or onDraw() has breaks down,
        // it causes the drawing to be abnormal and the choreographer to break down.
        // We will notify you on this method,you’d better finish this activity or restart the application.
    }
 
    @Override
    public void onEnterSafeMode() {
        // We enter the safe mode to keep the main looper loop after crashed.You’d better do nothing here,we just notify you.
    }
 
}