执行setResult后的回调顺序

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A ——> startActivityForResult ——> B ——>setResult 不执行finish 方法  A是在B执行了setResult方法还是B被finish后执行onActivityResult方法?

A ——> startActivityForResult ——> B ——>setResult ——> finish 如果栈里面A和B中间还有activity  A将不会在(B setResult和finish)后执行onActivityResult方法 而是在A startActivityForResult 后马上执行 参数resultCode为RESULT_CANCEL   该情况可能会出现在A与B不在同一栈的情况（如B的启动模式为单栈（详情））

正确调用顺序如下

A ——> startActivityForResult ——> B ——>setResult ——> finish ——> A——>onActivityResult ——>onRestart——>onStart——>onResume

原因Activity的onActivityResult方法注释如下

  /**
     * Called when an activity you launched exits, giving you the requestCode
     * you started it with, the resultCode it returned, and any additional
     * data from it.  The <var>resultCode</var> will be
     * {@link #RESULT_CANCELED} if the activity explicitly returned that,
     * didn‘t return any result, or crashed during its operation.
     *
     * <p>You will receive this call immediately before onResume() when your
     * activity is re-starting.
     *
     * @param requestCode The integer request code originally supplied to
     *                    startActivityForResult(), allowing you to identify who this
     *                    result came from.
     * @param resultCode The integer result code returned by the child activity
     *                   through its setResult().
     * @param data An Intent, which can return result data to the caller
     *               (various data can be attached to Intent "extras").
     *
     * @see #startActivityForResult
     * @see #createPendingResult
     * @see #setResult(int)
     */

执行onActivityResult之前先执行onResume方法 经测试onStart方法在onActivityReult后面 onRestart应该一样 

结论先执行onActivityResult在执行生命周期方法

执行setResult后的回调顺序

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原文地址：http://blog.csdn.net/nailsoul/article/details/44995975