拖动，拖拽视图，拖动排序
最近有一个项目，有一个主界面，界面上有很多控件或者有多个fragment组成，大小不一，而且由于用户需要，需要自由拖动和自由组合，形成用户自己需要的组合成的模样。所以写了一个 DragerViewLayout ，只要在 DragerViewLayout 下，写入了多个视图，就可以自由拖动和组合了。DragerViewLayout 本质上是一个相对布局，所以初始位置都可以自己按相对布局的方式来定义，然后用户手动拖动后，会自动记录每个子视图的位置，进行保存，等到重新加载后，会按照记录的位置进行布局。
Add it in your root build.gradle at the end of repositories:
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
} dependencies {
compile 'com.github.loonggg:DragerViewLayout:1.0'
} <repositories>
<repository>
<id>jitpack.io</id>
<url>https://jitpack.io</url>
</repository>
</repositories> <dependency>
<groupId>com.github.loonggg</groupId>
<artifactId>DragerViewLayout</artifactId>
<version>1.0</version>
</dependency><?xml version="1.0" encoding="utf-8"?>
<com.loonggg.lib.DragerViewLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drager_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#654321"
android:gravity="center"
android:padding="10dp"
android:tag="one"
android:text="我是炸弹"
android:textColor="#ffffff" />
<fragment
android:id="@+id/one"
android:name="com.loonggg.dragerviewlayout.OneFragment"
android:layout_width="200dp"
android:layout_height="200dp"
android:layout_below="@+id/btn"
android:tag="two" />
<fragment
android:id="@+id/three"
android:name="com.loonggg.dragerviewlayout.ThreeFragment"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_below="@+id/btn"
android:layout_toRightOf="@id/one"
android:tag="three" />
<fragment
android:name="com.loonggg.dragerviewlayout.TwoFragment"
android:layout_width="match_parent"
android:layout_height="400dp"
android:layout_below="@id/one"
android:tag="four" />
</com.loonggg.lib.DragerViewLayout>
注意：上面布局中每个控件中都必须设置tag，因为每个视图位置的移动和坐标都是通过tag来进行标记的，标记的是移动的哪个视图和控件。
public class MainActivity extends AppCompatActivity {
TextView btn;
private DragerViewLayout drager_layout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn = (TextView) findViewById(R.id.btn);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,150);
btn.setLayoutParams(params);
drager_layout = (DragerViewLayout) findViewById(R.id.drager_layout);
drager_layout.isDrager(true);//设置是否可以自动拖动视图
drager_layout.setFilePathAndName(Environment.getExternalStorageDirectory().getPath() + "/loonggg", "settings");//设置记录保存视图位置的文件的存放位置和名字
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(MainActivity.this, TwoActivity.class));
}
});
}
}欢迎大家关注我的微信公众号：非著名程序员（smart_android），更多好的原创文章均首发于微信订阅号：非著名程序员
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