我想用浮动按钮从我的地图片段中调用一个活动,但它不起作用,应用程序不断崩溃。
MapsActivity.java
public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {
private GoogleMap mMap;
String json_string; //ici seront stockées les information concernant les établissements
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
public void getBar(View view){
Log.v("myTag","button Clicked");
Intent intent = new Intent(this, DisplayFilter.class);
startActivity(intent);
}
}
DisplayFilter.java
public class DisplayFilter extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.filtreview);
Log.v("myTag","vue affichée");
}
}
logcat显示此
它讨论了android清单,但我认为我不应该对其进行编辑吗?
答案 0 :(得分:1)
我猜您的问题来自此代码
public void getBar(View view){
Log.v("myTag","button Clicked");
Intent intent = new Intent(this, DisplayFilter.class);
//Intent intent = new Intent(getActivity(), DisplayFilter.class);
startActivity(intent);
}
问题是您在Fragment
中,因此您无法通过this
,而必须使用getActivity()
。
您以某种方式需要context
,因此您也可以致电view.getContext()
只要您想创建Activity
,请执行以下步骤:
图片取自:this answer
您的清单应如下所示:
<application
....
<activity1></activity1>
<activity
android:name=". DisplayFilter" />
...
</application>