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Add button to clear back stack.

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Change-Id: I4f02714ec349055a486608ff0eab75a46d6ba7cd
This commit is contained in:
Dianne Hackborn
2011-12-12 17:33:51 -08:00
parent 3d398d7243
commit 85241cc795
3 changed files with 26 additions and 5 deletions
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10
samples/Support4Demos/res/layout/fragment_stack.xml
View File

@@ -28,11 +28,19 @@
android:layout_weight="1">
</FrameLayout>
<LinearLayout
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_weight="0" android:orientation="horizontal">
<Button android:id="@+id/home"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:text="@string/home">
<requestFocus />
</Button>
<Button android:id="@+id/new_fragment"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_weight="0"
android:text="@string/new_fragment">
<requestFocus />
</Button>
</LinearLayout>
</LinearLayout>

1
samples/Support4Demos/res/values/strings.xml
View File

@@ -77,6 +77,7 @@
<string name="fragment_receive_result_support">Fragment/Receive Result</string>
<string name="fragment_stack_support">Fragment/Stack</string>
<string name="home">Go home</string>
<string name="new_fragment">New fragment</string>
<string name="fragment_tabs">Fragment/Tabs</string>

12
samples/Support4Demos/src/com/example/android/supportv4/app/FragmentStackSupport.java
View File

@@ -20,6 +20,7 @@ import com.example.android.supportv4.R;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.os.Bundle;
@@ -45,6 +46,17 @@ public class FragmentStackSupport extends FragmentActivity {
addFragmentToStack();
}
});
button = (Button)findViewById(R.id.home);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// If there is a back stack, pop it all.
FragmentManager fm = getSupportFragmentManager();
if (fm.getBackStackEntryCount() > 0) {
fm.popBackStack(fm.getBackStackEntryAt(0).getId(),
FragmentManager.POP_BACK_STACK_INCLUSIVE);
}
}
});
if (savedInstanceState == null) {
// Do first time initialization -- add initial fragment.