How setup color coloring syntax code highlight highlighting in Eclipse editor Android example
How setup color coloring highlight highlighting syntax font size and family in Eclipse Java and XML editor Android example
Java editor
xml editor
xml editor double click in Preferences dialog on xml -> Editor -> Syntax coloring
[caption id="attachment_627" align="alignleft" width="297" caption="Eclipse editor syntax color settings"]
[/caption]
Java editor
- Go to Eclipse menu Window -> Preferences
- Doubleclick on Java
- Double click on Editor
- Select Java, Javadocs or Comments and setup color and font
- Font size and family change from Window->Preferences-> General->Appearance->Colors and Fonts
- Press OK for saving changes
xml editor
xml editor double click in Preferences dialog on xml -> Editor -> Syntax coloring
[caption id="attachment_627" align="alignleft" width="297" caption="Eclipse editor syntax color settings"]

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Example have error code:
//developer.android.com/training/basics/fragments/creating.html
Try to change ArticleFragment.java
//developer.android.com/training/basics/fragments/creating.html
Try to change ArticleFragment.java
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* //www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.fragments;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class ArticleFragment extends Fragment {
final static String ARG_POSITION = "position";
int mCurrentPosition = -1;
TextView articleText;
@Override
// public View onCreateView(LayoutInflater inflater, ViewGroup container,
// Bundle savedInstanceState) {
//
// // If activity recreated (such as from screen rotate), restore
// // the previous article selection set by onSaveInstanceState().
// // This is primarily necessary when in the two-pane layout.
// if (savedInstanceState != null) {
// mCurrentPosition = savedInstanceState.getInt(ARG_POSITION);
// }
//
// // Inflate the layout for this fragment
// return inflater.inflate(R.layout.article_view, container, false);
// }
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// If activity recreated (such as from screen rotate), restore
// the previous article selection set by onSaveInstanceState().
// This is primarily necessary when in the two-pane layout.
if (savedInstanceState != null) {
mCurrentPosition = savedInstanceState.getInt(ARG_POSITION);
}
// Inflate the layout for this fragment
View rootView = inflater.inflate(R.layout.article_view, container, false);
articleText = (TextView) rootView.findViewById(R.id.article);
return rootView;
}
@Override
public void onStart() {
super.onStart();
// During startup, check if there are arguments passed to the fragment.
// onStart is a good place to do this because the layout has already been
// applied to the fragment at this point so we can safely call the method
// below that sets the article text.
Bundle args = getArguments();
if (args != null) {
// Set article based on argument passed in
updateArticleView(args.getInt(ARG_POSITION));
} else if (mCurrentPosition != -1) {
// Set article based on saved instance state defined during onCreateView
updateArticleView(mCurrentPosition);
}
}
public void updateArticleView(int position) {
//TextView article = (TextView) getActivity().findViewById(R.id.article); //Error: article=null.
if (articleText != null)
articleText.setText(Ipsum.Articles[position]);
mCurrentPosition = position;
}
/* ERROR public void updateArticleView(int position) {
TextView article = (TextView) getActivity().findViewById(R.id.article);
article.setText(Ipsum.Articles[position]);
mCurrentPosition = position;
}*/
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
// Save the current article selection in case we need to recreate the fragment
outState.putInt(ARG_POSITION, mCurrentPosition);
}
}
ScrollTo(), getTop(), getBottom(), getLeft(), getRight(), ScrollView, LinearLayout Android Java xml example.
How get position of a View.
MainClass.java
main.xml
How get position of a View.
MainClass.java
/*
public void scrollTo (int x, int y)
Since: API Level 1
Set the scrolled position of your view. This will cause a call to onScrollChanged(int, int, int, int) and the view will be invalidated.
This version also clamps the scrolling to the bounds of our child.
Parameters
x the x position to scroll to
y the y position to scroll to
*/
// sroll to top of hscrollViewMain
ScrollView hscrollViewMain = (ScrollView)findViewById(R.id.scrollViewMain);
hscrollViewMain.scrollTo(0, 0); // scroll to application top
// get position of a View
EditText hEdit = (EditText)findViewById(R.id.username_edit);
int nY_Pos = hEdit.getTop(); // getBottom(); X_pos getLeft(); getRight();
// scroll to top of hEdit
hscrollViewMain.scrollTo(0,nY_Pos);
main.xml
<LinearLayout
xmlns:android="//schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<ScrollView
android:id="@*id/scrollViewMain"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical"
android:paddingTop="5dip"
android:paddingBottom="13dip"
android:paddingLeft="20dip"
android:paddingRight="20dip">
<TextView
android:id="@+id/message"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dip" />
<TextView
android:textAppearance="?android:attr/textAppearanceSmall"
android:textStyle="bold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/login_activity_username_label" />
<EditText
android:id="@+id/username_edit"
android:singleLine="true"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:minWidth="250dip"
android:scrollHorizontally="true"
android:capitalize="none"
android:autoText="false"
android:inputType="textEmailAddress" />
</LinearLayout>
</ScrollView>
</LinearLayout>
Rotate a bitmap Android source code.

public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new SampleView(this));
}
private static class SampleView extends View {
// CONSTRUCTOR
public SampleView(Context context) {
super(context);
setFocusable(true);
}
@Override
protected void onDraw(Canvas canvas) {
Paint paint = new Paint();
canvas.drawColor(Color.YELLOW);
// Bitmap b = Bitmap.createBitmap(200, 200, Bitmap.Config.ARGB_8888);
// you need to insert a image flower_blue into res/drawable folder
Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.flower_blue);
Matrix mat = new Matrix();
mat.postRotate(90);
Bitmap bmpRotate = Bitmap.createBitmap(bmp, 0, 0,
bmp.getWidth(), bmp.getHeight(),
mat, true);
int h = bmp.getHeight();
canvas.drawBitmap(bmp, 10,10, paint);
canvas.drawBitmap(bmpRotate, 10,10 + h + 10, paint);
}
}
}

Get assets folder files to array of strings.
Its show files in assets folder and sub folders:
Its show files in assets folder and sub folders:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final AssetManager assetManager = getAssets();
try {
// for assets folder add empty string
String[] filelist = assetManager.list("");
// for assets/subFolderInAssets add only subfolder name
String[] filelistInSubfolder = assetManager.list("subFolderInAssets");
if (filelist == null) {
// dir does not exist or is not a directory
} else {
for (int i=0; i<filelist.length; i++) {
// Get filename of file or directory
String filename = filelist[i];
}
}
// if(filelistInSubfolder == null) ............
} catch (IOException e) {
e.printStackTrace();
}
}
Important: Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB
Example of usage:
int layout = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB ?
android.R.layout.simple_list_item_activated_1 :
android.R.layout.simple_list_item_1;
getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
getListView().setItemChecked(position, true);
Example of usage:
public void updateList() {
Context ctx = getActivity();
Notes notes = new Notes(ctx);
String[] from = { Notes.COLUMN_TITLE };
int[] to = { android.R.id.text1 };
int layout = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB ?
android.R.layout.simple_list_item_activated_1 : android.R.layout.simple_list_item_1;
ListAdapter adapter = new SimpleCursorAdapter(ctx,
layout, notes.getNotes(), from,
to, 0);
setListAdapter(adapter);
notes.close();
}
/..................
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
// Set the item as checked to be highlighted when in two-pane layout
getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
getListView().setItemChecked(position, true);
}
Editace: 2014-02-15 20:47:51
Počet článků v kategorii: 396
Url:how-setup-color-syntax-highlight-in-eclipse-android-example