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implenented left and right layout

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This commit is contained in:
shembull
2020-01-19 11:58:57 +01:00
parent b1c47b85bb
commit 0a5484dd6c
12 changed files with 160 additions and 29 deletions
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1
.idea/codeStyles/Project.xml generated
View File

@@ -94,7 +94,6 @@
<XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
</AND>
</match>
<order>ANDROID_ATTRIBUTE_ORDER</order>
</rule>
</section>
<section>

12
.idea/gradle.xml generated
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@@ -1,15 +1,19 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="GradleMigrationSettings" migrationVersion="1" />
<component name="GradleSettings">
<option name="linkedExternalProjectsSettings">
<GradleProjectSettings>
<compositeConfiguration>
<compositeBuild compositeDefinitionSource="SCRIPT" />
</compositeConfiguration>
<option name="testRunner" value="PLATFORM" />
<option name="distributionType" value="DEFAULT_WRAPPED" />
<option name="externalProjectPath" value="$PROJECT_DIR$" />
<option name="modules">
<set>
<option value="$PROJECT_DIR$" />
<option value="$PROJECT_DIR$/app" />
</set>
</option>
<option name="resolveModulePerSourceSet" value="false" />
<option name="testRunner" value="PLATFORM" />
</GradleProjectSettings>
</option>
</component>

25
.idea/jarRepositories.xml generated Normal file
View File

@@ -0,0 +1,25 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="RemoteRepositoriesConfiguration">
<remote-repository>
<option name="id" value="central" />
<option name="name" value="Maven Central repository" />
<option name="url" value="https://repo1.maven.org/maven2" />
</remote-repository>
<remote-repository>
<option name="id" value="jboss.community" />
<option name="name" value="JBoss Community repository" />
<option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
</remote-repository>
<remote-repository>
<option name="id" value="BintrayJCenter" />
<option name="name" value="BintrayJCenter" />
<option name="url" value="https://jcenter.bintray.com/" />
</remote-repository>
<remote-repository>
<option name="id" value="Google" />
<option name="name" value="Google" />
<option name="url" value="https://dl.google.com/dl/android/maven2/" />
</remote-repository>
</component>
</project>

5
.idea/misc.xml generated
View File

@@ -1,8 +1,9 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/build/classes" />
<component name="JavaScriptSettings">
<option name="languageLevel" value="ES6" />
</component>
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK" />
<component name="ProjectType">
<option name="id" value="Android" />
</component>

26
app/src/main/java/com/example/recyclerview/MainActivity.java
View File

@@ -5,13 +5,16 @@ import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.os.Bundle;
import android.os.Handler;
import java.util.ArrayList;
import java.util.Date;
public class MainActivity extends AppCompatActivity {
public class MainActivity extends AppCompatActivity implements Runnable {
ArrayList<Message> mData;
Handler mHandler;
MyAdapter myAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
@@ -21,10 +24,29 @@ public class MainActivity extends AppCompatActivity {
mData.add(new Message("Joel", "Eine super Nachricht", new Date()));
mData.add(new Message("Max", "Eine Nachricht", new Date()));
MyAdapter myAdapter = new MyAdapter(mData);
myAdapter = new MyAdapter(mData);
RecyclerView mRecyclerView = findViewById(R.id.recyclerView);
LinearLayoutManager mLinearLayoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(mLinearLayoutManager);
mRecyclerView.setAdapter(myAdapter);
mHandler = new Handler();
mHandler.postDelayed(this, 1000);
}
@Override
public void run() {
int randNr = (int) Math.floor(Math.random() * 3);
switch (randNr){
case 0:
mData.add(new Message("Niklas", "Eine super duper Nachricht", new Date()));
break;
case 1:
mData.add(new Message("Joel", "Eine super Nachricht", new Date()));
break;
case 2:
mData.add(new Message("Max", "Eine Nachricht", new Date()));
}
myAdapter.notifyDataSetChanged();
mHandler.postDelayed(this, 1000);
}
}

53
app/src/main/java/com/example/recyclerview/MyAdapter.java
View File

@@ -1,5 +1,6 @@
package com.example.recyclerview;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
@@ -10,7 +11,7 @@ import androidx.recyclerview.widget.RecyclerView;
import java.util.ArrayList;
public class MyAdapter extends RecyclerView.Adapter<MyViewHolder> {
public class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
ArrayList<Message> mData;
@@ -18,23 +19,51 @@ public class MyAdapter extends RecyclerView.Adapter<MyViewHolder> {
mData = aData;
}
@Override
public int getItemViewType(int position) {
return position % 2;
}
@NonNull
@Override
public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
View newView = inflater.inflate(R.layout.message_layout, parent, false);
MyViewHolder myViewHolder = new MyViewHolder(newView);
return myViewHolder;
switch (viewType) {
case 1:
View newViewRight = inflater.inflate(R.layout.message_layout_right, parent, false);
return new MyViewHolderRight(newViewRight);
case 0:
default:
View newViewLeft = inflater.inflate(R.layout.message_layout_left, parent, false);
return new MyViewHolderLeft(newViewLeft);
}
}
@Override
public void onBindViewHolder(@NonNull MyViewHolder holder, int position) {
TextView sender = holder.mTextView.findViewById(R.id.sender_tv);
sender.setText(mData.get(position).sender);
TextView text = holder.mTextView.findViewById(R.id.text_tv);
text.setText(mData.get(position).text);
TextView date = holder.mTextView.findViewById(R.id.date_tv);
date.setText(mData.get(position).date.toString());
public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {
TextView sender;
TextView text;
TextView date;
switch (holder.getItemViewType()) {
case 1:
MyViewHolderRight viewHolderRight = (MyViewHolderRight) holder;
sender = viewHolderRight.mLinearLayout.findViewById(R.id.sender_tv);
text = viewHolderRight.mLinearLayout.findViewById(R.id.text_tv);
date = viewHolderRight.mLinearLayout.findViewById(R.id.date_tv);
sender.setText(mData.get(position).sender);
text.setText(mData.get(position).text);
date.setText(mData.get(position).date.toString());
break;
case 0:
default:
MyViewHolderLeft viewHolderLeft = (MyViewHolderLeft) holder;
sender = viewHolderLeft.mLinearLayout.findViewById(R.id.sender_tv);
text = viewHolderLeft.mLinearLayout.findViewById(R.id.text_tv);
date = viewHolderLeft.mLinearLayout.findViewById(R.id.date_tv);
sender.setText(mData.get(position).sender);
text.setText(mData.get(position).text);
date.setText(mData.get(position).date.toString());
}
}
@Override

8
app/src/main/java/com/example/recyclerview/MyViewHolder.java → app/src/main/java/com/example/recyclerview/MyViewHolderLeft.java
View File

@@ -6,10 +6,10 @@ import android.widget.LinearLayout;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
public class MyViewHolder extends RecyclerView.ViewHolder {
LinearLayout mTextView;
public MyViewHolder(@NonNull View itemView) {
public class MyViewHolderLeft extends RecyclerView.ViewHolder {
LinearLayout mLinearLayout;
public MyViewHolderLeft(@NonNull View itemView) {
super(itemView);
mTextView = (LinearLayout) itemView;
mLinearLayout = (LinearLayout) itemView;
}
}

15
app/src/main/java/com/example/recyclerview/MyViewHolderRight.java Normal file
View File

@@ -0,0 +1,15 @@
package com.example.recyclerview;
import android.view.View;
import android.widget.LinearLayout;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
public class MyViewHolderRight extends RecyclerView.ViewHolder {
LinearLayout mLinearLayout;
public MyViewHolderRight(@NonNull View itemView) {
super(itemView);
mLinearLayout = (LinearLayout) itemView;
}
}

8
app/src/main/res/layout/message_layout.xml → app/src/main/res/layout/message_layout_left.xml
View File

@@ -1,14 +1,20 @@
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/message_layout_left"
android:layout_width="match_parent"
android:layout_height="100dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="150dp"
android:orientation="vertical">
<TextView
android:id="@+id/sender_tv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="TextView" />
android:text="TextView"
android:textSize="18sp"
android:textStyle="bold"
android:typeface="normal" />
<TextView
android:id="@+id/text_tv"

30
app/src/main/res/layout/message_layout_right.xml Normal file
View File

@@ -0,0 +1,30 @@
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/message_layout_right"
android:layout_width="match_parent"
android:layout_height="100dp"
android:layout_marginLeft="150dp"
android:layout_marginRight="10dp"
android:orientation="vertical">
<TextView
android:id="@+id/sender_tv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="TextView"
android:textSize="18sp"
android:textStyle="bold" />
<TextView
android:id="@+id/text_tv"
android:layout_width="match_parent"
android:layout_height="57dp"
android:text="TextView" />
<TextView
android:id="@+id/date_tv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="TextView"
android:textAlignment="textEnd" />
</LinearLayout>

2
build.gradle
View File

@@ -7,7 +7,7 @@ buildscript {
}
dependencies {
classpath 'com.android.tools.build:gradle:3.5.2'
classpath 'com.android.tools.build:gradle:4.0.0-alpha08'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files

4
gradle/wrapper/gradle-wrapper.properties vendored
View File

@@ -1,6 +1,6 @@
#Tue Jan 14 16:39:03 CET 2020
#Sun Jan 19 10:43:18 CET 2020
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
distributionUrl=https\://services.gradle.org/distributions/gradle-6.1-rc-1-all.zip