小编mr.*_*tea的帖子

我尝试将支持库更新到23.2.0并遇到此错误:

Exception while inflating <vector>
org.xmlpull.v1.XmlPullParserException: Binary XML file line #17<vector> tag requires viewportWidth > 0
at android.support.graphics.drawable.VectorDrawableCompat.updateStateFromTypedArray(VectorDrawableCompat.java:535)
at android.support.graphics.drawable.VectorDrawableCompat.inflate(VectorDrawableCompat.java:472)
at android.support.graphics.drawable.VectorDrawableCompat.createFromXmlInner(VectorDrawableCompat.java:436)
at android.support.v7.widget.AppCompatDrawableManager$VdcInflateDelegate.createFromXmlInner(AppCompatDrawableManager.java:829)
at android.support.v7.widget.AppCompatDrawableManager.loadDrawableFromDelegates(AppCompatDrawableManager.java:303)
at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:178)
at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:173)
at android.support.v7.widget.TintTypedArray.getDrawable(TintTypedArray.java:60)
at android.support.v7.widget.Toolbar.<init>(Toolbar.java:254)
at android.support.v7.widget.Toolbar.<init>(Toolbar.java:196)
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
at android.view.LayoutInflater.createView(LayoutInflater.java:594)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:267)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:129)
at com.chotot.vn.v2.activities.MainActivity.onCreate(MainActivity.java:121)
at android.app.Activity.performCreate(Activity.java:5133)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2175)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2261)
at android.app.ActivityThread.access$600(ActivityThread.java:141)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method) …

我在尝试制作项目模块时遇到此错误

apply plugin: 'com.android.library'

android {
    compileSdkVersion 17
    buildToolsVersion "19.1.0"

    defaultConfig {
        minSdkVersion 8
        targetSdkVersion 8
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        }
    }
}

dependencies {
    compile files('libs/sdk.jar')
    compile files('libs/ads-lib.jar')
    compile project(':google-play-services_lib')
    compile files('libs/hdvdecoderandroid.jar')
}

我该如何解决这个错误？

编辑

这是我的日志文件,当我尝试在命令行中构建它时

org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':hDVietAndroid:m
ergeDebugResources'.
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAct
ions(ExecuteActionsTaskExecuter.java:69)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(Ex
ecuteActionsTaskExecuter.java:46)
        at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.exe
cute(PostExecutionAnalysisTaskExecuter.java:35)
        at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(Skip
UpToDateTaskExecuter.java:64)
        at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(Valida
tingTaskExecuter.java:58)
        at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.exec
ute(SkipEmptySourceFilesTaskExecuter.java:42)
        at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute
(SkipTaskWithNoActionsExecuter.java:52)
        at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOn
lyIfTaskExecuter.java:53)
        at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute
(ExecuteAtMostOnceTaskExecuter.java:43)
        at org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(Abstra
ctTask.java:305) …

抱歉我的愚蠢标题,我将在下面清楚地描述:

情况

我有ViewPager4 OnBoardingFragment秒内.每个Fragment都具有完全相同的布局,inflated来自相同的xml文件.这个布局包含Button我调用的一个,我为它btnNext设置了OnClickListener它.

getItem我的PagerAdapter的功能

@Override
public Fragment getItem(int position) {
    String title, description, button;
    int resource;
    boolean end = false;
    switch (position) {
        case 0:
            title = context.getString(R.string.on_boarding_title_1);
            description = context.getString(R.string.on_boarding_description_1);
            resource = R.drawable.on_boarding_bg_0;
            button = context.getString(R.string.on_boarding_button_1);
            break;
        case 1:
            title = context.getString(R.string.on_boarding_title_2);
            description = context.getString(R.string.on_boarding_description_2);
            resource = R.drawable.on_boarding_bg_1;
            button = context.getString(R.string.on_boarding_button_2);
            break;
        case 2:
            title = context.getString(R.string.on_boarding_title_3);
            description = context.getString(R.string.on_boarding_description_3);
            resource = R.drawable.on_boarding_bg_2;
            button …

我看到Sounds app可以通过只按一个OK按钮邀请我所有的Facebook好友安装这个应用程序.

我怎样才能做到这一点？

我遇到了一个非常奇怪的问题。我的情况是：

我构建了一个包含许多页面的应用程序，每个页面都是一个Fragment. 我在每个页面中都使用了RecyclerView和。CardView我的主页布局如下：

当我单击图像项目导航到详细信息页面然后立即按后退按钮时，我的主页会显示，但是：

正如您所看到的，所有阴影和角效果都消失了，滚动不起作用，当我触摸某个项目时，需要几秒钟才能导航详细信息页面。当显示详细信息页面时，一切恢复正常。这是我的替换片段方法：

public void replaceBackgroundFragment(Fragment mf, String tag, boolean addBackStack) {
    if (mf != null && (currentFragmentTag == null || !currentFragmentTag.equals(tag))) {
        FragmentTransaction ft = fragmentManager.beginTransaction();
        ft.setCustomAnimations(R.anim.slide_in_right, R.anim.slide_out_left,
                R.anim.slide_in_left, R.anim.slide_out_right);
        ft.replace(R.id.rl_background, mf, tag);
        if (addBackStack) {
            mf.setCanBack(true);
            ft.addToBackStack(tag);
        }
        ft.commit();
        pendingFragment = null;
        pendingTag = null;
    }
}

当点击一个项目时：

public void onItemClick(MainBanner item) {
      MoviePlayerFragment fragment = MoviePlayerFragment.newInstance(item.getItemID());
      activity.replaceBackgroundFragment(fragment, "movie_player_fragment" + item.getItemID(), true); …

当我尝试使用Android Studiowith 构建项目时,我遇到了这个错误minifyEnabled true.

错误的详细信息

:app:transformClassesWithDexForDevDebug
Uncaught translation error: com.android.dx.cf.code.SimException: expected type int but found com.apptimize.hz
Uncaught translation error: com.android.dx.cf.code.SimException: expected type int but found com.apptimize.oa
2 errors; aborting

我该如何解决？

UPDATE*

Proguard文件的内容.

-optimizationpasses 5 -dontusemixedcaseclassnames -dontskipnonpubliclibraryclasses -dontpreverify -verbose -optimizations!code/simplification/arithmetic,!field /,!class/merge /

-dontwarn android.support.**-dontwarn com.atinternet.**-dontwarn org.apache.**

-keep public class*extends android.app.Activity -keep public class*extends android.app.Application -keep public class*extends android.app.Service -keep public class*extends android.content.BroadcastReceiver -keep public class*extends android.content.ContentProvider -keep public class*extends android.app.backup.BackupAgentHelper -keep public class*extends android.preference.Preference -keep public class …

我在下面有两个应用程序。我用javaMulticastSocket来发送和接收DatagramPacket。

发件人

public class Sender {

    public static void main(String[] args) throws IOException {
        int port = 5000;
        String group = "225.4.5.6";
        final MulticastSocket s = new MulticastSocket();
        byte[] buf = new byte[10];
        for (int i = 0; i < buf.length; i++) {
            buf[i] = (byte) i;
        }
        final DatagramPacket pack = new DatagramPacket(buf, buf.length,
                InetAddress.getByName(group), port);
        Timer timer = new Timer();
        timer.scheduleAtFixedRate(new TimerTask() {

            @Override
            public void run() {
                try {
                    s.send(pack);
                    System.out.println("Sent");
                } catch …

我创建了一个 android 发件人应用程序。它似乎不起作用，我想知道发生了什么，但我无法访问http://RECEIVER-IP-ADDRESS:9222。我已经注册了我的 chromecast 设备并使用了默认接收器。

我正在使用Exoplayer库来创建视频播放器应用程序。我正在尝试制作一个类似 youtube 的功能：将视频播放器拖到底部，我将被缩放到更小的尺寸。为此，我使用了ViewDragHelper。当玩家拖动时，我会像这样缩放它的大小：

public void onViewPositionChanged(View changedView, int left, int top, int dx, int dy) {
            mTop = top;

            mDragOffset = (float) top / mDragRange;

            mVideoView.setPivotX(mHeaderView.getWidth());
            mVideoView.setPivotY(mHeaderView.getHeight());
            mVideoView.setScaleX(1 - mDragOffset / 2);
            mVideoView.setScaleY(1 - mDragOffset / 2);

            mDescView.setAlpha(1 - mDragOffset);
            requestLayout();
        } 

mVideoView是 a SurfaceView，玩家需要SurfaceView渲染它的内容。在SurfaceView规模正确的，但它的内容却没有。

问题：如何缩放 SurfaceView 及其内容？

简单的问题,但我没有在互联网上看到任何答案.那么,我如何在Kotlin中获取对象的地址？

以下是我的错误

java.lang.AbstractMethodError: abstract method "boolean android.support.v7.widget.RecyclerView$ItemAnimator.animatePersistence(android.support.v7.widget.RecyclerView$ViewHolder, 
    android.support.v7.widget.RecyclerView$ItemAnimator$ItemHolderInfo, 
    android.support.v7.widget.RecyclerView$ItemAnimator$ItemHolderInfo)"