Android Open Source - android-fragment-viewtree Main Activity

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Back to project page android-fragment-viewtree.

License

The source code is released under:

MIT License

Java Source Code

package com.example.mysimplefragmentapp;
/*from  w  ww  . j a  va2  s.  c  o m*/
import android.app.Activity;
import android.app.ActionBar;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.os.Build;

public class MainActivity extends Activity {

  private void log(String msg){
    Log.i("LIFE", "activity:" + msg);
  }
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    log("onCreate");
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    if (savedInstanceState == null) {
      FragmentTransaction ft = getFragmentManager().beginTransaction();
      log("ft1");
      ft.add(R.id.container, new MyFragment("f1"));
      log("ft2");
      ft.add(R.id.container, new MyFragment("f2"));
      log("ft3");
      ft.commit();
      log("ft4");
    }
    log("/onCreate");
  }

  @Override protected void onPostCreate(Bundle savedInstanceState) { log("onPostCreate"); super.onPostCreate(savedInstanceState); }
  @Override protected void onStart()    { log("onStart");  super.onStart(); }
  @Override protected void onRestart()  { log("onRestart");  super.onRestart(); }
  @Override protected void onResume()    { log("onResume");  super.onResume(); showTree(); }
  @Override protected void onPause()    { log("onPause");  super.onPause(); }
  @Override protected void onStop()    { log("onStop");  super.onStop(); }
  @Override protected void onDestroy()  { log("onDestroy");  super.onDestroy(); }
  @Override public void onAttachFragment(Fragment fragment) { log("onAttachFragment"); super.onAttachFragment(fragment); }

  // ????????????????????????
  private void showTree(){
    String s = getTree(null, "");
    TextView text = (TextView)findViewById(R.id.textView1);
    text.setText(s);
  }
  private String getTree(View v, String indent){
    String ret = "";
    if(v == null){
      v = getWindow().getDecorView();
    }
    // ????
    ret += indent + v.getClass().toString() + "\n";
    // ??
    if(v instanceof ViewGroup){
      ViewGroup group = (ViewGroup)v;
      for(int i=0; i<group.getChildCount(); ++i) {
          View child = group.getChildAt(i);
          ret += getTree(child, indent + "    ");
      }
    }
    // ???
    return ret;
  }

  // fragment
  public static class MyFragment extends Fragment {
    String name;
    
    private void log(String msg){
      Log.i("LIFE", this.name + ":" + msg);
    }
    public MyFragment(String name) {
      this.name = name;
      log("construct");
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
      log("onCreateView");
      View rootView = inflater.inflate(R.layout.fragment_main, container,
          false);
      return rootView;
    }
    @Override public void onAttach(Activity activity)      { log("onAttach"); super.onAttach(activity); }
    @Override public void onCreate(Bundle savedInstanceState)  { log("onCreate"); super.onCreate(savedInstanceState); }
    @Override public void onViewCreated(View view, Bundle savedInstanceState) { log("onViewCreated"); super.onViewCreated(view, savedInstanceState); }
    @Override public void onActivityCreated(Bundle savedInstanceState) { log("onActivityCreated"); super.onActivityCreated(savedInstanceState); }
    @Override public void onStart()      { log("onStart");  super.onStart(); }
    @Override public void onResume()    { log("onResume");  super.onResume(); }
    @Override public void onPause()      { log("onPause");  super.onPause(); }
    @Override public void onStop()      { log("onStop");    super.onStop(); }
    @Override public void onDestroyView()  { log("onDestroyView");  super.onDestroyView(); }
    @Override public void onDestroy()    { log("onDestroy");    super.onDestroy(); }
    @Override public void onDetach()    { log("onDetach");    super.onDetach(); }
    
  }
}

Java Source Code List

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