在Android应用程序中从相机捕获图像后，单击onActivityResult（）内的按钮

Question

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // Check which request we're responding to
    if (requestCode == PICK_CONTACT_REQUEST) {
        // Make sure the request was successful
        if (resultCode == RESULT_OK) {
            //Button Click
        }
    }
}

这里如果是RESULT_OK，如何点击按钮并做我们想做的事。请帮助我找到解决方案。我使用了if(getTaskId()==R.id.PassImageBtn){}但是如果我点击按钮就什么也没发生。

Answer 1

将 performClick （）方法用于呼叫按钮点击事件。

private Button mButton;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.my_layout);
    mButton = findViewById(R.id.my_button);
    mButton.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            // ...
        }
    });
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // Check which request we're responding to
    if (requestCode == PICK_CONTACT_REQUEST) {
        // Make sure the request was successful
        if (resultCode == RESULT_OK) {
            mButton.performClick();
        }
    }
}