OnActivityResult不工作(Android)
我在ActivityResult上使用了一个简单的函数,但它并没有返回我想要的结果 请查看我的代码并告诉我哪里做错了OnActivityResult不工作(Android),android,android-intent,Android,Android Intent,我在ActivityResult上使用了一个简单的函数,但它并没有返回我想要的结果 请查看我的代码并告诉我哪里做错了 public void OnClickFunction(View view) { Intent intent = new Intent(getApplicationContext(), Second.class); startActivityForResult(intent, RESULT_OK); /// My actions. . . }
public void OnClickFunction(View view)
{
Intent intent = new Intent(getApplicationContext(), Second.class);
startActivityForResult(intent, RESULT_OK);
/// My actions. . .
}
然后在第二节课中,我设置了如下结果:
Button.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
ValueOne = EditText.getText().toString().trim();
if (ValueOne.equals(String.valueOf(Answer)))
{
Toast.makeText(getApplicationContext(), "Correct Answer", 0).show();
Second.this.setResult(RESULT_OK, null);
Second.this.finish();
}
else
{
Toast.makeText(getApplicationContext(), "Wrong Answer", 0).show();
}
}
});
现在回到first.class,从那里调用了Intent:
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
// if (requestCode == RESULT_OK)
// {
if (resultCode == RESULT_OK)
{
///// MyActions. . .
}
// }
}
调试器未调试此函数,因此无法获得所需的结果。我哪里做错了??在源代码类中:
int activity=1;
Intent i=new Intent(Sourceclass.this,destination.class);
startActivityForResult(i,activity);
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (resultCode == RESULT_OK)
{
if(requestCode==1)
{
Log.e("check","check");
}
}
}
目的地舱:
Intent i=new Intent();
setResult(RESULT_OK,i);
finish();
在源类的OnActivityResult中:
int activity=1;
Intent i=new Intent(Sourceclass.this,destination.class);
startActivityForResult(i,activity);
public void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (resultCode == RESULT_OK)
{
if(requestCode==1)
{
Log.e("check","check");
}
}
}
你必须摧毁第二个活动。试着按后退按钮。我能够在onActivityResult中查看所有日志消息 第一项活动
public class FirstActivity extends Activity {
/** Called when the activity is first created. */
int result = 100;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Intent i = new Intent(this,SecondActivity.class);
startActivityForResult(i, result);
}
@Override
protected void onActivityResult (int requestCode, int resultCode, Intent data) {
Log.i("H", "RequestCode:" + requestCode);
Log.i("H", "ResultCode:" + resultCode );
}
}
第二项活动
public class SecondActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
setResult(RESULT_OK);
Log.i("S","Exiting Second Activity");
}
}
在我的例子中:使用activityForResult时,我添加了以下标志: addFlags(标记活动新任务)
删除此标志时,已修复您确定您的活动位于同一任务中吗?看一看:您确定if条件为真,并且显示正确的应答消息吗?您还可以使用setResult(RESULT_OK)代替setResult(RESULT_OK,null);Button.setOnClickListener???@Pratik。。是,显示正确答案。我也只使用了setResult(RESULT_OK),但同样的问题。@Ash。。。是的,两个活动具有相同的任务。@abhi。。是的,我根据你的回答编辑了我的代码,但问题仍然存在,你的活动扩展了“扩展AppCompatActivity”