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How do I change screen orientation in the Android emulator?
...
See developer.android.com/guide/developing/tools/…
– Mirko N.
Jan 2 '10 at 13:59
20
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How to securely store access token and secret in Android?
...ncryption key.
What's the best method to securely store these tokens in Android?
4 Answers
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Select multiple images from android gallery
So basically what i am trying to achieve is opening the Gallery in Android and let the user select multiple images . Now this question has been asked frequently but i'm not satisfied with the answers. Mainly because i found something interesting in de docs in my IDE (i come back on this later) ...
Android: I am unable to have ViewPager WRAP_CONTENT
...wPager in yout XML layouts just like the original ViewPager:
<view
android:layout_width="match_parent"
android:layout_height="wrap_content"
class="de.cybergen.ui.layout.WrapContentHeightViewPager"
android:id="@+id/wrapContentHeightViewPager"
android:layout_alignParentBottom="...
How to make a copy of a file in android?
...May this is the source of the problem? And yes, I have <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>.
– Mike B.
Jun 26 '15 at 19:00
1
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How to set RelativeLayout layout params in code not in xml?
.... All done in MainActivity.java.
package com.example.atul.allison;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.RelativeLayout;
import android.widget.Button;
import android.graphics.Color;
import android.widget.EditText;
import android.content.res...
Navigation Drawer (Google+ vs. YouTube)
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Edit #3:
The Navigation Drawer pattern is officially described in the Android documentation!
Check out the following links:
Design docs can be found here.
Developer docs can be found here.
Edit #2:
Roman Nurik (an Android design engineer at Google) has confirmed that the recommended be...
Android: checkbox listener
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You get the error because you imported wrong package.You should import android.widget.CompoundButton.OnCheckedChangeListener;
So the callback should be :
box.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButto...
【拍照图片处理】Attempt to invoke virtual method 'boolean android.grap...
...，拍照后图片就报错：
Attempt to invoke virtual method 'boolean android.graphics.Bitmap.compress(android.graphics.Bitmap$CompressFormat, int, java.io.OutputStream)' on a null object reference
图片大致的处理流程是：先TaifunImage压缩尺寸，在Base64化，调在线api进行...
Attempt to invoke virtual method 'boolean android.graphics.Bitmap.comp...
Attempt to invoke virtual method 'boolean android.graphics.Bitmap.compress(android.graphics.Bitmap$CompressFormat, int, java.io.OutputStream)' on a null object reference
原因：调用 TaifunImage 时给定的图片路径为空导致的。
解决：指定有效的图片路径，或者拍照...