Ich habe beide Varianten schon getestet.
Es stürzt trotzdem ab
Woran könnte es noch liegen?
MainActivity.java
package de.com.woehrer.e_formelrechner;
public class MainActivity extends ActionBarActivity {
Button work;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
work = (Button) findViewById(R.id.work);
work.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(MainActivity.this, arbeit.class));
}
});
AdView mAdView = (AdView) findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder().build();
mAdView.loadAd(adRequest);
}
public void ohmlawopen(View view) {
Intent in = new Intent(this, ohm_law.class);
startActivity(in);
}
public void workopen(View view) {
;
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
activity_main.xrnl
<RelativeLayout xmlns:android="Link"
xmlns:tools="Link"
xmlns:ads="Link"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
<TextView android:text="@string/hello_world" android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/textView2" />
<com.google.android.gms.ads.AdView
android:id="@+id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
ads:adSize="BANNER"
ads:adUnitId="@string/banner_ad_unit_id">
</com.google.android.gms.ads.AdView>
<Button
android:layout_width="150dp"
android:layout_height="80dp"
android:text="@string/ohm_law"
android:id="@+id/ohm_law"
android:layout_below="@+id/textView2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:onClick="ohmlawopen"/>
<Button
android:layout_width="150dp"
android:layout_height="80dp"
android:text="@string/work"
android:id="@+id/work"
android:layout_alignBottom="@+id/ohm_law"
android:layout_alignRight="@+id/adView"
android:layout_alignEnd="@+id/adView"/>
