小编seo*_*eon的帖子

添加依赖项时,我无法找出确切的问题.

 dependencies {
    compile 'com.github.jetradarmobile:android-snowfall:1.1.2'
}

我得到了上述错误

 my Gradle(Project)


     buildscript {
         repositories {
             jcenter()
         }
         dependencies {
             classpath 'com.android.tools.build:gradle:2.2.1'
         }
     }
     allprojects {
         repositories {
             jcenter() {
                 maven { url "https://jitpack.io" }
             }
         }
     }
     task clean(type: Delete) {
         delete rootProject.buildDir
     }

我的Gradle(应用程序)

     apply plugin: 'com.android.application'

     android {
         compileSdkVersion 24
         buildToolsVersion "24.0.3"
         defaultConfig {
             applicationId "com.animationbook.animationbook"
             minSdkVersion 15
             targetSdkVersion 24
             versionCode 1
             versionName "1.0"
             testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         }
         buildTypes {
             release {
                 minifyEnabled false
                 proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
             }
         }
     }
     dependencies …

我无法缩放 ViewPager 上的 ImageView。

我的主要活动

 public class ViewPagerMain extends AppCompatActivity {

        ScaleGestureDetector scaleGestureDetector;
        ImageView imageView;
        Matrix matrix;
        ViewPager viewPager;
        private ViewPagerArrowIndicator viewPagerArrowIndicator;
        Drawable rightarrow, leftarrow;
        Button buttonnext, buttonprev;


        @Override
        protected void onCreate(@Nullable Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_viewpager);
            buttonnext = (Button) findViewById(R.id.nexxt);
            buttonprev = (Button) findViewById(R.id.prevv);


            viewPager = (ViewPager) findViewById(R.id.view_pager);
            //  viewPagerArrowIndicator = (ViewPagerArrowIndicator) findViewById(R.id.viewPagerArrowIndicator);
            imageView = (ImageView) findViewById(R.id.imageView);
            CustomPagerAdapter customPagerAdapter = new CustomPagerAdapter(this);
            viewPager.setAdapter(customPagerAdapter);
            //  viewPagerArrowIndicator.bind(viewPager);
            //  viewPagerArrowIndicator.setArrowIndicatorRes(R.drawable.ic_arrow_left, R.drawable.ic_arrow_right);
            //  rightarrow = getResources().getDrawable(R.drawable.ic_arrow_right);
            // rightarrow.setColorFilter(getResources().getColor(R.color.RED), PorterDuff.Mode.SRC_ATOP);
            // leftarrow = getResources().getDrawable(R.drawable.ic_arrow_left); …