Android Open Source - AGOGCyberStat Log Text View

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Back to project page AGOGCyberStat.

License

The source code is released under:

MIT License

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Java Source Code

package me.allenz.androidapplog;
/*from  w w w .j av  a  2 s  . c  o  m*/
import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.text.Editable;
import android.text.TextWatcher;
import android.text.method.ScrollingMovementMethod;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.ViewGroup.LayoutParams;
import android.widget.FrameLayout;
import android.widget.ScrollView;
import android.widget.TextView;

public class LogTextView extends TextView {
    ScrollView mParentScrollView;

    public LogTextView(final Context context){
        super(context);
        setAttributes();
    }

    public LogTextView(final Context context, final AttributeSet attrs){
        super(context, attrs);
    }

    public LogTextView(final Context context, final AttributeSet attrs, final int defStyle){
        super(context, attrs, defStyle);
    }
    
    public void setScrollView(ScrollView sv) {
      mParentScrollView = sv;
      mParentScrollView.addView(this);
    }
    
    public ScrollView getScrollView() {
      return(mParentScrollView);
    }

    public void addScrollView(final Activity activity) {
      final FrameLayout root = (FrameLayout) activity.getWindow().getDecorView().findViewById(android.R.id.content);

      root.addView(mParentScrollView);
      root.bringChildToFront(mParentScrollView);    
    }

    public void removeScrollView(final Activity activity) {
      final FrameLayout root = (FrameLayout) activity.getWindow().getDecorView().findViewById(android.R.id.content);

      root.removeView(mParentScrollView);
    }


    private void setAttributes() {
        setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
        setTextColor(Color.parseColor("#66000000"));
        setTextSize(TypedValue.COMPLEX_UNIT_SP, 10f);
        setGravity(Gravity.BOTTOM);
        setSingleLine(false);
        setBackgroundColor(Color.parseColor("#ffffffff"));
        setKeyListener(null);
        setMovementMethod(ScrollingMovementMethod.getInstance());
        addTextChangedListener(new TextWatcher(){

            @Override
            public void onTextChanged(final CharSequence s, final int start, final int before, final int count) {}

            @Override
            public void beforeTextChanged(final CharSequence s, final int start, final int count, final int after) {}

            @Override
            public void afterTextChanged(final Editable s) {
                if(getLayout() != null) {
                  if(mParentScrollView != null) {
                    mParentScrollView.fullScroll(ScrollView.FOCUS_DOWN);
                  }
                  else {
                    final int scrollAmount =
                        getLayout().getLineTop(getLineCount()) -
                            getHeight();
                    if (scrollAmount > 0) {
                        scrollTo(0, scrollAmount);
                    } else {
                        scrollTo(0, 0);
                    }
                  }
                }
            }
        });
    }

    @Override
    public boolean dispatchTouchEvent(final MotionEvent event) {
        return false;
    }

}

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