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micro:bit 连接报错 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...ventor.ble.BluetoothLEintSBLEReadOperation.run(BluetoothLEint.java:325) at android.os.Handler.handleCallback(Handler.java:1013) at
android.os.Handler.dispatchMessage(Handler.java:101) at android.os.Looper.loopOnce(Looper.java:226) at android.os.Looper.loop(Looper.java:328) at android.app.ActivityTh...
Making a Location object in Android with latitude and longitude values
... answered Aug 1 '13 at 1:52
AndroidersonAndroiderson
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How to scroll to bottom in a ScrollView on activity startup
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You can do this in layout file:
android:id="@+id/listViewContent"
android:layout_width="wrap_content"
android:layout_height="381dp"
android:stackFromBottom="true"
android:transcriptMode="alway...
Java: random long number in 0
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Starting from Java 7 (or Android API Level 21 = 5.0+) you could directly use ThreadLocalRandom.current().nextLong(n) (for 0 ≤ x < n) and ThreadLocalRandom.current().nextLong(m, n) (for m ≤ x < n). See @Alex's answer for detail.
If you ar...
How to convert a Bitmap to Drawable in android?
How can I convert a Bitmap image to Drawable ?
10 Answers
10
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Camera orientation issue in Android
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@Abhijit Yes I tried to solve this (opened ticket with Android and so on) And i think I found a reasonable solution to handle both phones with proper and faulty orientation information. Check out my detailed answer I posted to my own question here; stackoverflow.com/a/8864367/137...
Bold words in a string of strings.xml in Android
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For anybody else who found the official Android documentation a bit too vague on this: if you use tags like <b> in your string resource, make sure you retrieve it using getText(R.string.whatever) rather than getString(R.string.whatever)
–...
Populating a ListView using an ArrayList?
My Android app needs to populate the ListView using the data from an ArrayList .
5 Answers
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Media Player called in state 0, error (-38,0)
...tested and working fine:
package com.example.com.mak.mediaplayer;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.app.Activity;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bu...
Draw multi-line text to Canvas
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Unfortunately Android doesn't know what \n is. What you have to do is strip the \n and then offset the Y to get your text on the next line. So something like this:
canvas.drawText("This is", 100, 100, mTextPaint);
canvas.drawText("multi-l...