android.support.v4.app.ActivityCompat#finishAffinity ( )源码实例Demo

/**
     * 回到主界面,可在Splash外的其他界面使用
     * @param activity
     */
    public static void upToMain(Activity activity) {
        Intent intent = new Intent(activity, MainActivity.class);
//        NavUtils.navigateUpTo(activity, intent);
        intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        if (activity instanceof MainActivity) {
            ((MainActivity) activity).close();
        }
        activity.startActivity(intent);
        activity.overridePendingTransition(0, 0);
        if (!(activity instanceof MainActivity)) {
            ActivityCompat.finishAffinity(activity);
            activity.overridePendingTransition(0, android.R.anim.fade_out);
        }
    }
 

/**
 * 返回上一个Activity
 *
 * @param old     当前Activity的Context
 * @param mBundle
 */
public static void back(Context old, Bundle mBundle, boolean isAffinity) {
    Activity activity = (Activity) old;
    Intent intent = activity.getIntent();
    if (mBundle != null) {
        mBundle.putBoolean(BUNDLE_ACTIVITY_UPDATE, true);
        intent.putExtras(mBundle);
    }
    if (isAffinity) {
        activity.setResult(Activity.RESULT_CANCELED);
        ActivityCompat.finishAffinity(activity);
    } else {
        activity.setResult(Activity.RESULT_OK, intent);
        activity.finish();
    }
}
 

/**
     * 回到主界面,可在Splash外的其他界面使用
     * @param activity
     */
    public static void upToMain(Activity activity) {
        Intent intent = new Intent(activity, MainActivity.class);
//        NavUtils.navigateUpTo(activity, intent);
        intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        if (activity instanceof MainActivity) {
            ((MainActivity) activity).close();
        }
        activity.startActivity(intent);
        activity.overridePendingTransition(0, 0);
        if (!(activity instanceof MainActivity)) {
            ActivityCompat.finishAffinity(activity);
            activity.overridePendingTransition(0, android.R.anim.fade_out);
        }
    }
 

@Override
public void onBackPressed() {
    super.onBackPressed();
    if (status.equals("check")) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            finishAffinity();
        } else {
            ActivityCompat.finishAffinity(this);
        }
    }
}
 

/**
     * 启动主界面,可在Splash界面或出现异常时使用.
     * @param context
     */
    public static void launchMain(Context context) {
//        context.getPackageManager().resolveActivity(
//                new Intent(Intent.ACTION_MAIN).setPackage(context.getPackageName())
//                        .addCategory(Intent.CATEGORY_DEFAULT),
//                0);
        boolean inActivityContext = context instanceof Activity;
        Intent intent = new Intent(context, MainActivity.class);
        if (!inActivityContext) {
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        }
        intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        if (context instanceof MainActivity) {
            ((MainActivity) context).close();
        }
        context.startActivity(intent);
        if (context instanceof Activity) {
            if (context instanceof SplashActivity)
                ((Activity) context).overridePendingTransition(android.R.anim.fade_in, 0);
            ((Activity) context).overridePendingTransition(0, 0);
        }
        if (context instanceof Activity && !(context instanceof MainActivity)) {
            ActivityCompat.finishAffinity((Activity) context);
            ((Activity) context).overridePendingTransition(0, android.R.anim.fade_out);
        }
    }
 

/**
     * 启动主界面,可在Splash界面或出现异常时使用.
     * @param context
     */
    public static void launchMain(Context context) {
//        context.getPackageManager().resolveActivity(
//                new Intent(Intent.ACTION_MAIN).setPackage(context.getPackageName())
//                        .addCategory(Intent.CATEGORY_DEFAULT),
//                0);
        boolean inActivityContext = context instanceof Activity;
        Intent intent = new Intent(context, MainActivity.class);
        if (!inActivityContext) {
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        }
        intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        if (context instanceof MainActivity) {
            ((MainActivity) context).close();
        }
        context.startActivity(intent);
        if (context instanceof Activity) {
            if (context instanceof SplashActivity)
                ((Activity) context).overridePendingTransition(android.R.anim.fade_in, 0);
            ((Activity) context).overridePendingTransition(0, 0);
        }
        if (context instanceof Activity && !(context instanceof MainActivity)) {
            ActivityCompat.finishAffinity((Activity) context);
            ((Activity) context).overridePendingTransition(0, android.R.anim.fade_out);
        }
    }
 

static void finishWizard (Activity context) {
    setShouldShowWizard(false, context);
    ActivityCompat.finishAffinity(context);
    context.startActivity(new Intent(context,
            MainActivity.class));
}
 

public void close() {
    hookFinishToMoveBack = false;
    ActivityCompat.finishAffinity(this);
    overridePendingTransition(0, android.R.anim.fade_out);
}
 

public void close() {
    hookFinishToMoveBack = false;
    ActivityCompat.finishAffinity(this);
    overridePendingTransition(0, android.R.anim.fade_out);
}
 

private void restartApp() {
  ActivityCompat.finishAffinity(getActivity());
  startActivity(new Intent(getActivity(), MainActivity.class));
}